MythBusters (2010 season)
|MythBusters (2010 season)|
|Country of origin||Australia
|No. of episodes||25 (includes 4 specials)|
|Original channel||Discovery Channel|
|Original run||January 4, 2010– December 22, 2010|
|List of MythBusters episodes|
|Wikiquote has a collection of quotations related to: MythBusters|
The cast of the television series MythBusters perform experiments to verify or debunk urban legends, old wives' tales, and the like. This is a list of the various myths tested on the show as well as the results of the experiments (the myth is Busted, Plausible, or Confirmed).
- 1 Episode overview
- 2 Episode 137 – Boomerang Bullet
- 3 Episode 138 – Soda Cup Killer
- 4 Episode 139 – Dive To Survive
- 5 Episode 140 – Spy Car Escape
- 6 Episode 141 – Bottle Bash
- 7 Episode 142 – No Pain, No Gain
- 8 Episode 143 – Mythssion Control
- 9 Episode 144 – Duct Tape Hour 2
- 10 Episode 145 – Waterslide Wipeout
- 11 Episode 146 – Fireball Stun Gun
- 12 Episode 147 – Flu Fiction
- 13 Episode SP13 – Top 25 Moments
- 14 Episode 148 – Hair of the Dog
- 15 Episode 149 - Storm Chasing Myths
- 16 Episode 150 - Cold Feet
- 17 Episode 151 - Tablecloth Chaos
- 18 Episode 152 - Arrow Machine Gun
- 19 Episode 153 - Mini Myth Madness
- 20 Episode 154 – Reverse Engineering
- 21 Episode 155 – Inverted Underwater Car
- 22 Episode 156 – Bug Special
- 23 Episode 157 – President's Challenge
- 24 Episode 158 – Green Hornet Special
- 25 Episode 159 – Operation Valkyrie
- 26 See also
- 27 References
- 28 External links
|No. in series||No. in season||Title||Original air date||Overall episode No.|
|137||1||"Boomerang Bullet"||January 4, 2010||151|
Can you accidentally kill yourself with a bullet that ricochets off three walls?
Could a medieval army have used trees to catapult dead bodies over a castle wall?
|138||2||"Soda Cup Killer"||March 24, 2010||152|
|139||3||"Dive to Survive"||March 31, 2010||153|
|140||4||"Spy Car Escape"||April 7, 2010||154|
Can an object fired backward from a vehicle moving forward simply fall to the ground?
Do the movie spy car tricks to escape a chasing car work?
|141||5||"Bottle Bash"||April 14, 2010||155|
What's worse, having an empty beer bottle smashed over your head, or a full one?
Could ancient armies have used animal hides to build their cannons?
|142||6||"No Pain, No Gain"||April 28, 2010||156|
Are some types of people more tolerant to pain?
Can a BBQ propane tank heat up enough in a fire to launch through a garage roof like a rocket?
|143||7||"Mythssion Control"||May 5, 2010||157|
Revisit for "Knock Your Socks Off" and "Compact Compact".
|144||8||"Duct Tape Hour 2"||May 12, 2010||158|
|145||9||"Waterslide Wipeout"||May 19, 2010||159|
Can a person be launched 115 feet into a kiddie pool from a giant waterslide?
Can a mail delivery truck taking only right turns save gas?
|146||10||"Fireball Stun Gun"||June 2, 2010||160|
Does pepper spray + flannel shirt + stun gun = massive fireball, per CSI?
Can fireworks really launch a person over a lake?
|147||11||"Flu Fiction"||June 9, 2010||161|
Jamie, Adam, Kari, Grant and Tory take on snot and sneezes.
Can you be decapitated by a tornado?
|SP13||Special 1||"MythBusters Top 25 Moments"||June 16, 2010||162|
|Note: This is a special/clip-show episode.|
|SP14||Special 2||"Car Conundrum"||June 23, 2010||163|
|148||12||"Hair of the Dog"||October 6, 2010||164|
Can an escaped convict really outsmart and outrun his pursuers? (Revisit of 2007's "Fool the Bloodhound" myth)
Is it possible to fool a dog trained to sniff out contraband?
|149||13||"Storm Chasing Myths"||October 13, 2010||165|
|150||14||"Cold Feet"||October 20, 2010||166|
When you get Cold Feet, do you really get cold feet?
When the poop hits the fan, does everyone get covered in the ensuing chaos?
|151||15||"Tablecloth Chaos"||October 27, 2010||167|
Can a motorcycle pull a tablecloth out from under a setting for a banquet?
Do humans really only use 10% of their brain?
|152||16||"Arrow Machine Gun"||November 3, 2010
October 25, 2010 (UK)
Did the Greeks create an arrow machine gun that offered the speed, distance and precision that modern machine guns do?
Is driving while tired as bad as — or worse than — driving while tipsy?
|153||17||"Mini Myth Madness"||November 10, 2010||169|
Can a scuba diver wear a tuxedo underneath his drysuit, go underwater, resurface, strip off his scuba gear, and be able to present the tuxedo perfectly?
Can a car's tire pressure affect its fuel efficiency?
Can a laptop stop a bullet from point-blank range?
Can a hair weave stop a .40 caliber bullet?
Can a fridge door stop a round of 9mm bullets?
Out of using your elbow, using your hand, and using a handkerchief to cover your mouth when you sneeze, which is the best way to limit the spread of germs?
Is it easy to take candy from a baby?
Can a bottle of beer, when given a sudden shock, turn from a liquid and freeze into a solid?
|154||18||"Reverse Engineering"||November 17, 2010
November 8, 2010 (UK)
Does a certain '70s sports car become more aerodynamic if the body is turned backwards?
A myth from the movie Lethal Weapon 2 is tested: Can a surfboard be launched through the windscreen of a car, and still be lethal?
|155||19||"Inverted Underwater Car"||November 24, 2010||171|
If a car flips upside down as it sinks, will the driver be able to escape? (Revisit of "Underwater Car" from 2007.)
Can a carton of milk keep a pistol's muzzle flash from igniting a room full of flammable gas?
|156||20||"Bug Special"||December 1, 2010||172|
Can honey bees lift a laptop?
Can hitting a bug at high speeds on a motorcycle be fatal?
Can hanging a bag of water repel flies?
|157||21||"President's Challenge"||December 8, 2010||173|
President Obama challenges Adam and Jamie to revisit the Ancient Death Ray myth (Ancient Death Ray) originally aired September 29, 2004.
A myth from the film Hellboy is tested: Is it possible to make a moving SUV flip end-over-end by punching down on the hood?
|158||22||"Green Hornet Special"||December 15, 2010||174|
Seth Rogen challenges the cast to replicate two scenes from his film The Green Hornet.
Can a buried car use onboard explosives to blast a bulldozer out of the way without injuring the passengers?
If a bullet-riddled car gets stuck in a rising elevator, will the ceiling cut it in half and can the front end be driven away?
|159||23||"Operation Valkyrie"||December 22, 2010||175|
Did Adolf Hitler survive Operation Valkyrie only because he was in a conference room instead of an underground bunker?
Can you literally knock some sense into a person by slapping them?
Episode 137 – Boomerang Bullet
- Original air date: January 4, 2010
Adam and Jamie probe a potentially fatal three-way ricochet, while the Build Team tries to re-create medieval germ warfare by turning trees into catapults.
|A person firing a gun can accidentally kill himself if his bullet ricochets off three surfaces and returns to him.||Busted||Adam and Jamie set up three steel plates at 90-degree angles, along with a .45 caliber pistol and a cardboard cutout of Jamie behind it. In three trials with different ammunition types – unjacketed lead, full metal jacket, and total metal jacket – the bullets fragmented after striking the first plate. A fourth trial, using a hardened steel ball bearing in a bullet casing, led to three ricochets and a hit on the shooter; however, the projectile struck at a less-than-lethal speed.
Other materials were investigated for use as targets, starting with measurements of ricochet angles and speeds from only one plate. Cinderblock pavers were chosen over lead due to the latter's tendency to make bullets tumble and lose too much speed. When Adam and Jamie set up three pavers and fired a TMJ round, they observed three ricochets and a less-than-lethal hit on the Jamie cutout.
Finally, they bent a piece of plumbing pipe into a curve to serve as a bullet guide, firing into one end toward a block of ballistic gelatin at the other. A 46-inch (117 cm) diameter curve, forming nearly a full circle, resulted in lethal speed and penetration on the target (with an Adam cutout in front of it). Adam and Jamie declared the myth busted, owing to the slow speed of the bullet after three ricochets.
|A medieval army laying siege to a castle could have used nearby coniferous trees as an improvised catapult to hurl diseased corpses over the wall.||Busted||The Build Team began by visiting a tree plantation to determine the amount of bending force a typical conifer could withstand without breaking. Their first test, on a Gray Pine, gave a result of 2,000 pounds-force (8,900 N); they loaded Buster into a second such tree and applied the same force, but he only fell to the ground when they released it.
Returning to the workshop, they set up some small-scale tests with saplings of three different types—Douglas-fir, redwood, and Alaskan cedar—and a miniature Buster figure. Preliminary trials showed that the fir could give the longest range for the same bending angle, so the team trimmed off the limbs and attached a tether to keep the payload in place until the right moment. With these modifications, the sapling flung "Mini McBuster" all the way to the other end of the shop.
At the plantation, the team found a full-size Douglas-fir and set it up in the same way, aiming at a bouncy castle 100 feet (30 m) away with a 40-foot (12 m) balloon "wall". With 2,400 pounds-force (11,000 N) of bending force on the trunk, Buster flew almost all the way to the castle, but hit the ground just short of it. Because they were unable to hit their target even with the benefit of modern machinery and cutting off all the limbs, the team declared the myth busted.
Episode 138 – Soda Cup Killer
- Original air date: March 24, 2010
- Jessi Combs' final appearance as a member of the Build Team.
Cup vs Car
|A foam cup filled with soda, tossed from a car moving at highway speed, is capable of piercing another car's windshield and killing the driver.||Partly Busted||Adam and Jamie first fired several different mixes of soda and ice out of an air cannon to measure which was capable of delivering the most force. They found that slush was the most effective mix. They then built a test rig with a windshield and Buster that simulated an oncoming vehicle. In a test run at 40 miles per hour (64 km/h), the cup was able to crack the windshield. At the full 60 mph (97 km/h), the cup pierced the windshield, but did not retain enough force to be lethal to Buster. They then decided to switch to using soda cans. While they worked better at piercing the windshield, Adam was unable to hit the windshield accurately enough to hit Buster. They resorted to using a shoulder mounted air cannon Jamie built, but still could not hit the windshield accurately enough. With one windshield left, the MythBusters instead fired at the windshield at point blank range, "killing" Buster. However, since the cup lacked the power to harm Buster, the myth was declared Busted. The MythBusters did point out that the situation was dangerous; the driver on the receiving end would likely be startled by the cup, and would have trouble seeing out of the cracked windshield. That, in addition to being covered in the sticky drink and the splinters of glass from the broken window would likely result in a very serious accident (and possibly death).|
|A person can hang off the edge of a building or cliff indefinitely.||Busted||The Build Team first tried to hang off the edge of a building () with three inches of space to hold on to. All three members could only hold on for roughly one minute (Tory badly hurting his knee on a window ledge in the process). They then reduced the grip space to one inch; now Jessi could only hold on for thirty seconds, while Grant could not get a grip at all and instantly fell when hanging from half an inch. Aaron, an expert, showed that he could hold on to an inch of space for roughly forty seconds and half an inch of space for fourteen seconds. However, nobody could hold on to the edge indefinitely. The Build Team concluded that the only way one could be saved in this situation is if help arrived very quickly.|
|A person can hang off the landing skid of a moving helicopter and successfully climb into the helicopter.||Confirmed||Because hanging off an actual helicopter was deemed too dangerous, the Build Team decided to simulate the experiment. They first tested the downward force generated by a helicopter to see whether it would affect a person's ability to hang off the skid, but found that it would at most only exert 130 grams-force (1.3 N; 0.29 lbf), which was negligible. For the experiment, they built a fake helicopter and hung it over a swimming pool for safety reasons. To simulate movement, they set up a large fan that could create winds of up to 95 mph (153 km/h). Jessi, Tory, and Grant all took turns hanging off the skid and succeeded in climbing into the helicopter. Though a success, the Build Team was quick to point out that it was much harder than the movies would make it seem.|
Episode 139 – Dive To Survive
- Original air date: March 31, 2010
- Kari Byron returns to the series as of this episode.
Dive to Survive
|Diving underwater can protect you from an explosion.||Plausible||During their small-scale tests using rupture discs, the MythBusters discovered that water can actually diminish the force of a shock wave caused by an explosion, giving credence to the myth. For their full scale test, the MythBusters hung rupture discs 5 ft (1.5 m) above water, 5 feet (1.5 m) below water, and 10 ft (3.0 m) below water at 5-foot, 10-foot (3.0 m), 20-foot (6.1 m), and 50-foot (15 m) intervals away from the explosive. The MythBusters also detonated 50 pounds (23 kg) of three different types of explosives above the water: gasoline, ammonium nitrate, and dynamite. While the gasoline could only rupture the closest above water disc, the ammonium nitrate ruptured every single disc and the dynamite ruptured all the discs except for the underwater discs located 50 feet (15 m) away. With these differing results, the MythBusters declared that the myth was possible, depending on the explosive.|
|Filling the cavities of a car with phonebooks will make the car bulletproof for non-armor piercing rounds.||Busted||The Build Team filled several car doors with phone books and fired various firearms at it. The phonebooks were able to stop 9mm, .357 magnum, and .45 caliber rounds. However, the more powerful deer slug shotgun rounds and the M14 rifle were able to pierce the door and the phonebooks easily. Since the phonebooks could not stop all of the bullets, the myth was declared busted. However, the Build Team continued the experiment to see how many phone books behind the door would be needed to stop a deer slug and rifle round and found that only two phonebooks were needed.|
|A car completely covered in phonebooks will be bulletproof.||Busted||The Build Team calculated how many phone books would be needed to completely bulletproof the car, which would be around 900. However, the amount needed weighed significantly more than the car could carry, so the Build Team was forced to cut back the amount of phone books they could use down to 400. They then installed a remote control system in the car and covered it with as many phonebooks as they could, and placed inflatable dummies inside to simulate people. They then drove the car around as they fired M14 and deer slug rounds at it. All of the dummies inside the car survived. In their second test, the Build Team fired at the car with M16s and UMP40s, but all of the dummies survived. For the third test, the Build Team fired various high powered sniper rifles at the car. Kari managed to disable the car with a .50 caliber round and the combined sniper fire managed to kill everybody in the car. Though the car was highly resistant to bullets, the fact that they could still penetrate the car and harm the people inside led the Build Team to declare the myth busted.|
Episode 140 – Spy Car Escape
- Original air date: April 7, 2010
Spy Car Escape
Based on countless car chase scenes from spy movies, the Mythbusters try to test whether a pursuing car can be stopped or eluded using...
|...road spikes or tacks.||Busted||While the road spikes managed to puncture the pursuit car's tires, they did not instantly deflate and the pursuit car managed to catch Adam. The reason why the spikes failed was attributed to the fact that the spikes stuck in the tires, partially plugging up the holes and causing the tires to deflate more slowly.|
|...a smokescreen.||Confirmed||During the first run, Jamie attached several smoke grenades to the rear of his car to create a makeshift smokescreen. While initially successful, the smokescreen quickly backfired when the smoke was sucked into Jamie's car as well, blinding and choking him and forcing him to stop the chase. They modified the rig to keep the smoke grenades outside of the car, and Adam drove while wearing an oxygen mask. The second test was more successful, with Adam being able to use the smokescreen to elude the pursuit car.|
|...an oil slick.||Plausible||The pursuit car was slowed down significantly by the oil slick, allowing Jamie to elude it. However, the pursuit car did not instantly spin out as is popularly shown in movies.|
The MythBusters then built their own car-stopping devices. They then attempted to see if a pursuer could be stopped with....
|...Adam's parachute rig.||Fail||As part of the MythBusters' challenge, Adam designed a rig that would deploy a parachute and release it in hopes of blinding the pursuit car. While the parachute successfully deployed, the pursuit car was able to avoid it and chase down Adam. Both Adam and Jamie agreed that it might have worked, but that the challenge required a more reliable method.|
|...Jamie's specialized car-stopping devices.||Partially Successful||As part of the MythBusters' challenge, Jamie designed specialized car-stoppers meant to get caught in the pursuit car's undercarriage and slow it down. While they deployed successfully, the pursuit car managed to stay on Jamie's tail despite taking serious damage from the car-stoppers. Adam and Jamie pointed out that if the chase had gone on for much longer, the pursuit car would not have been able to keep up.|
|Throwing an object backward off a moving vehicle at the same speed as the vehicle is traveling forward will cause the object to drop straight to the ground.||Confirmed||For their first test, the Build Team used a treadmill running at 10 mph (16 km/h) to launch a weight off the back of a truck, and saw that the weight was propelled 6 ft (2 m) away. Next, the Build Team repeated the experiment, but had the truck driving at 10 mph, and the weight seemed to drop straight down. They then repeated the experiment at 60 mph (97 km/h) using an air cannon to fire a soccer ball. However, they couldn't get the ball to drop straight down and decided to change their method of firing the ball. They tested a soccer ball pitching machine and Grant's ball kicking robot against the air cannon. In the end, they decided to stay with the air cannon after finding out it performed the most consistently among all three machines. The Build Team attempted the experiment again, and after a number of tries, finally managed to get the ball to drop straight down.|
Episode 141 – Bottle Bash
- Original air date: April 14, 2010
|When bashing somebody in the head with a beer bottle, an empty beer bottle will cause more damage than a full one.||Busted||The Mythbusters first started by striking a fake human head with both full and empty bottles. The initial results showed that the full bottle struck with an average G-force of 28.1 while the empty bottle struck at an average of 22.7 Gs. However, the Mythbusters noted that the G-forces varied widely depending on how hard the head was struck. To get more consistent results, Adam built a machine to simulate a swinging arm. In their second test, the Mythbusters used the robot arm to strike a container with gelatin representing the human brain. Analyzing the results, they found that full bottle still delivered more force to the brain than the empty bottle, making an injury like a concussion more likely. However, the Mythbusters decided to factor in other injuries such as skull fractures and lacerations. They built a container to more closely simulate a human skull. The full bottles were able to smash the skull, while the empty bottle could not even crack it. They then used artificial skin and blood to test for lacerations. However, the full and empty bottles caused the same amount of lacerations. The full bottle was clearly more capable of causing damage than the empty bottle.|
|A fully functional cannon can be built completely out of leather.||Busted||For comparison, the Build Team fired a Civil War Parrott gun of similar size to the cannons described in the myth to measure its muzzle velocity, which was 389 mph (626 km/h). Because there are two separate versions of the myth, originating from Sweden and Ireland, the Build Team decided to test both designs. The Swedish cannon consisted of a copper core wrapped in leather and iron bands, while the Irish cannon was built completely out of leather. The Swedish cannon managed to fire its cannonball at a speed of 450 mph (720 km/h), but blew out its breech in the process. The Irish cannon failed spectacularly, with the breech blowing out, the cannonball moving only two feet, and the barrel completely unravelling, making a second shot impossible. They then built a third leather cannon and reinforced it with significantly more leather. They also lubricated the barrel to make it easier for the cannonball to fire. The cannon managed to fire successfully, but the cannonball could only achieve a speed of 52 mph (84 km/h). While the cannon was still structurally intact, the barrel was too damaged for a second shot.|
Episode 142 – No Pain, No Gain
- Original air date: April 28, 2010
No Pain, No Gain
Adam and Jamie subjected themselves to four painful stimuli – heat and electric current for Jamie, capsaicin (injected under the skin) and cold for Adam – and chose to use cold for their investigations. They then built a chair for test subjects to sit in, with an ice bath at 1 °C (34 °F) into which they would immerse one hand for as long as they could endure it, and imposed a 3-minute maximum. The following four myths were tested.
|Women have a higher pain tolerance than men.||Confirmed||Twenty-five members of each gender took part. The women lasted an average of 100.4 seconds in the ice, while the average for the men was 84.3 seconds.|
|Women who have undergone childbirth without using pain medication have a higher pain tolerance than women who have not.||Confirmed||In the SBS Sydney version of the episode, it was shown that the women who had given birth without pain medication lasted an average of 124 seconds in the above test, while the rest lasted an average of 73.8 seconds. Notably, the latter average was lower than that for the men.|
|Natural redheads have a lower pain tolerance than people of other hair colors.||Busted||Two dozen people of each group (redheads and non-redheads) took part. The average time for the redheads was 132.2 seconds, while that for the non-redheads was 79.1 seconds.|
|Cursing aloud will allow a person to tolerate more pain than using mild language.||Confirmed||Adam, Jamie, Grant, Tory, and Kari subjected themselves to the ice bath while saying a list of innocuous words to cope with the pain. Jamie and Tory had to disqualify themselves because they lasted the full 3 minutes; Tory also began cursing during this attempt. They were replaced by two staff members. In the second trial, the five subjects were allowed to say a list of curse words, resulting in an average 30% increase in the time that they could keep their hands in the ice.|
Gas Canister Rocket
|If the propane tank on a barbecue grill is exposed to fire, it can rupture explosively and propel itself 150 ft (46 m) into the air.||Plausible||The Build Team constructed a shed to California building code, placed a grill (with a full tank) inside, and stocked it with wood and charcoal to ensure a long and hot fire. When they ignited the shed, the pressure relief valve on the propane tank eventually opened and vented the gas. For all subsequent trials, Grant disabled the valve on every tank. The second trial involved a tank placed directly on a propane-fired burner; this time, the tank exploded and threw shrapnel up to 300 ft (91 m) in all directions. In a third test, the team bored a hole partway through the tank's base to simulate an old tank that had partially rusted through, and saw it peel itself apart from the bottom up. Reasoning that the tank might need to have some vapor space in order to launch, they repeated the test with a partially filled tank and got it to fly 60 ft (18 m) into the air while remaining intact.
The team declared the myth plausible at this point, then continued working in an attempt to get a higher flight. Tory built a launch guide and set up a 9 mm pistol to fire upward into the base of the tank as it sat on the burner, creating an instant nozzle. With the fire going and the tank about to burst, the team triggered the pistol and the resulting blast sent the tank into a high, spinning trajectory – enough to convince them that a propane tank could become a rocket under the right conditions.
Episode 143 – Mythssion Control
- Original air date: May 5, 2010
This myth was put forward by fans who complained about a comment Jamie made during the "Compact Compact" myth, where he claimed the force generated by two cars hitting each other at 50 mph (80 km/h) was equivalent to that of a car hitting a wall at 100 mph (160 km/h).
|Two cars crashing into each other at 50 mph will exert the same force as a single car hitting a wall at 50 mph.||Confirmed||In their small scale tests, the Mythbusters compressed clay with swinging hammers at two different speeds (1x and 2x speeds). Their results showed that two objects hitting each other at 1x speed will cause 1x damage. In their full scale tests, the Mythbusters crashed two cars into a wall at 50 and 100 mph as references. They then had two cars going at 50 mph collide into each other. After surveying the results, it was clear that the two cars suffered damage identical to the car that crashed into the wall at 50 mph. The Mythbusters explained that was possible through Newton's third law of motion. Even though there was twice the force generated from both cars, that force also had to be divided between the increased mass of both cars as well.|
Knock Your Socks Off Revisit
The fans put forward a number of arguments, citing that the Build Team did not have a proper human analogue, and that they used elastic socks instead of non-elastic ones. The Build Team also decided to see whether hairy or hairless legs would be a factor in the myth.
|It is possible to literally knock someone's socks off.||Partly Confirmed||The Build Team tested various types of socks on both hairy and hairless legs to see which sock could be pulled off the easiest. The Build Team then concluded that a non-elastic woven wool sock on a hairless leg would be the best possible combination. They then built ballistic gel legs covered in lamb skin to simulate human legs. The Build Team tested several punches: the uppercut, the right hook, and the body blow. However, none of the punches managed to remove the socks, even with superhuman strength. In order to see what it would take to knock a person's socks off, they hit Buster with a girder mounted on a moving truck. While the truck failed to knock Buster's socks off at 40 mph (64 km/h), they saw on reviewed footage that the socks were sliding off; a second run at 65 mph (105 km/h) finally sent the socks flying off Buster's feet. While the myth was confirmed, the Build Team pointed out that they had to use an astronomical amount of force in order to achieve it.|
Episode 144 – Duct Tape Hour 2
- Original air date: May 12, 2010
102 Uses for Duct Tape
The MythBusters and the Build Team investigate whether the "handyman's secret weapon" can be used to…
|…build a usable bridge across a chasm.||Confirmed||Adam and Jamie began by applying force to the middle of a strip of duct tape in order to determine its breaking strength. Finding a result of 67.3 lb (30.5 kg), they built up strands from layers of tape and Adam experimented with weaving them together to strengthen the design. They settled on a rope bridge with a 10-layer walkway, two handrails, and two stabilizing rails.
They took the bridge to Mare Island Naval Shipyard, where they could set it up across a 104 ft (32 m) gap with a 50 ft (15 m) drop. During test runs to pre-stretch the parts and remove the tape's elasticity, they decided to connect the walkway and handrails with struts in hopes of reducing the wobble. A total of 196 rolls of tape were used to build the finished bridge, which was connected to steel frames on opposite ends of the gap. Adam and Jamie both made the crossing successfully, though Jamie had a much harder time keeping his balance due to his fear of heights and/or the stress of Adam's previous crossing. Jamie commented that the elastic nature of the tape made it a poor choice for building bridges. When crossing the bridge they used fall protection in the form of a full body harness, self-retracting lifeline and energy absorbing lanyard. Based on the configuration of the setup if the bridge had failed when they were at the ends they could have been seriously injured due to the improper configuration of the system.
|…hold a completely dismantled car together so that it can be safely driven at high speed.||Confirmed||Kari tore apart a car's body and frame with the help of a squad of San Francisco firefighters. Grant and Tory then reassembled it with tape, and the Build Team took it to Naval Air Station Alameda, where they set up an obstacle course on the runway to put as much stress on the car as possible. With Kari driving 40–60 mph (64–97 km/h), the car held together through 10 laps. Next they did some off-road driving in the rain; the engine stalled after several minutes, but the tape did not fail.|
|…hold a car in place.||Confirmed||The Build Team hooked a force meter between a car's rear bumper and a telephone pole, and found that the car could pull with a force of 1,300 lbf (590 kgf). Based on the breaking strength data from the bridge testing, they wrapped five rolls of tape around the car and pole to bind the two together. When Grant stepped on the gas, the car stayed in place even as the tires began to smoke, with only one strip of tape breaking.|
|…stop a car going 60 mph (97 km/h).||Busted||The Build Team placed two concrete barricades on the Alameda runway and used one roll of tape to make a single thick strand strung between them. Driving at 40 mph (64 km/h), Tory was able to break through easily. For further tests, the team used 100 rolls of tape to make a 3 in (7.6 cm) thick wall, which they hung between the barricades, and towed the car into it while Grant steered remotely.
On the first test, a problem with the tow cable caused the car to hit one of the barricades; the tape took a glancing blow, but did not break. The second test ended with one of the wall's anchor points breaking loose, while the wall itself remained intact. In the third and final test, the car hit the wall dead center and broke through, but not before the tape had stretched nearly 6 ft (1.8 m). Based on the amount of time and material that would be needed to construct a workable car stopper, the team declared the myth busted.
Episode 145 – Waterslide Wipeout
- Original air date: May 19, 2010
|A person can slide down a supersized waterslide, launch off a ramp at the end, fly 115 ft (35 m), and land in a kiddie pool with perfect accuracy.||Busted||The Mythbusters first built a scale model of the slide, and discovered that the concept was plausible. They then built the full size ramp with dimensions based on thorough analysis of the video. For safety reasons, the Mythbusters built the slide next to a man-made lake () so that they could avoid injury if they missed the target. After several runs, the Mythbusters concluded that the 115-foot (35 m) flight distance was impossible, as they could only travel at a maximum distance of 72 ft (22 m) with a peak speed of 30 mph (48 km/h). In order to achieve the 115-foot (35 m) distance, they would need to be traveling at least 40 mph (64 km/h). They then tested the accuracy of the slide, and found that the accuracy was fairly consistent. However, because they couldn't achieve the distance portion of the myth, they were forced to bust the myth. Just to make absolutely sure, the MythBusters contacted the people responsible for making the video, and they confirmed that the video was made using computer graphics.|
Left Hand Turn
This myth was based on claims that delivery companies use programs that calculate routes using as few left turns as possible to maximize fuel efficiency.
|Driving a route taking only right turns instead of left turns is more fuel efficient than driving normally, because the vehicle uses up more gas idling while waiting for traffic to clear on a left turn than taking three right turns.||Confirmed||For their first test, the Build Team drove a regular size car on a controlled course. On the first run, they drove the car around a block using a left hand turn, but had to wait for a turn signal. In the second run, they instead took three right turns to bypass the signal, but the route was longer. The results showed that the car managed to cover more distance in less time taking right turns compared to left turns while only consuming less than one percent more fuel. For a real world result, the Build Team obtained a full size delivery truck, with the objective of delivering packages to several locations scattered throughout San Francisco. For their second run, they drove exactly the same route, but replaced all of the left turns with right turns. Both runs included the treacherous Lombard Street hill. After reviewing their results, the Build Team discovered that the right turn route was more fuel efficient with a 3% difference, despite having to drive a longer distance. Kari then pointed out that this would be an ideal strategy for delivery trucks in urban environments, but would not work as well with regular cars.|
Episode 146 – Fireball Stun Gun
- Original air date: June 2, 2010
Fireball Stun Gun
|A taser being used on a target covered with pepper spray will cause the target to catch on fire. This myth was inspired by an episode of CSI: Crime Scene Investigation, which featured Adam and Jamie in cameo roles.||Plausible||First, the Mythbusters attempted the myth exactly as it appeared on the show, by firing a taser at a coat covered in pepper spray, but failed to achieve combustion. The Mythbusters decided to analyze the individual parts of the myth. They studied a taser and discovered that it created sparks when in operation, providing a possible ignition source. They then tested various pepper spray brands for flammability. While 2 of the brands did not react, the other 3 combusted violently due to their use of flammable propellant. They then tested various clothing materials to determine which was the most flammable. While the material used in the show was flannel, the Mythbusters determined that acrylic fiber was the most flammable. They then combined all three aspects of the myth and managed to ignite a pepper-covered acrylic shirt with a taser. However, the flame was not as intense as that seen on the show, so the Mythbusters used a significantly larger amount pepper spray to achieve the same effect. Since the myth required a number of factors to achieve, the Mythbusters settled on a Plausible result. To end on a bang, Jamie incinerated a dummy using a flamethrower.|
|A man can attach 400 rockets to himself, launch off a ramp, fly over 150 ft (45.7 m), and land safely in a lake.||Busted||The Build Team first tested various high powered rockets to see which ones could generate the most thrust. However, they discovered that none of the rockets commercially available in the United States could lift a person in the numbers stated in the myth. To solve this problem, the Build Team decided to duplicate more powerful European made rockets and found them suitable for their needs. The Build Team then tested various small scale rocket designs to see which would be the most successful. During the full scale test, Buster managed to successfully launch off the ramp, but quickly lost control and fell into the lake well short of the 150 feet (46 m). However, even though Buster would have survived the launch, the fact that the rig didn't work and that any amateur's attempt would not meet the same quality led the Build Team to reluctantly bust the myth.|
Episode 147 – Flu Fiction
- Original air date: June 9, 2010
Adam and Jamie explore three myths associated with the common cold.
|A sneeze can leave a person's nose/mouth at 100 mph (160 km/h), roughly the same as a Category 2 hurricane.||Busted||Adam and Jamie used snuff to irritate their mucous membranes and force themselves to sneeze. Droplets from Adam's and Jamie's sneezes traveled at 35 mph (56 km/h) and 39 mph (63 km/h), respectively.|
|Droplets from a sneeze can travel up to 30 ft (9.1 m).||Busted||To get a visual indication of distance, Adam mixed cherry drink powder into the snuff and sneezed over a 30-foot (9.1 m)-long strip of white paper. When this method failed to show any marks, he and Jamie tried drinking a small amount of food coloring just before sneezing. This idea worked, giving a maximum distance of 17 ft (5.2 m) for Adam and 13 ft (4.0 m) for Jamie.|
|Nasal secretions from a person with a cold can spread so far and so quickly that anyone in the vicinity can become contaminated.||Confirmed||Adam and Jamie consulted with an otolaryngologist and learned that a person with a cold may secrete up to 60 milliliters of mucus per hour. Jamie built a rig from a syringe and tubing to match that drip rate with fluorescent dye, and Adam wore it by his nose as he did model-building work. After one hour, he and everything he had touched were stained with the dye.
They then set up a party for Adam to host, with three "germaphobe" guests (Kari, Grant, and Tory, who were briefed to try to avoid contact with Adam) and three unsuspecting ones. Thirty minutes later, Adam, the whole table, and every guest except Kari – who admitted that she actually was a germaphobe – were heavily contaminated. In a second experiment in which Adam consciously did his best to avoid physical contact (such as bumping elbows with his guests instead of shaking hands and asking the guests to pass certain things out to the other), all six guests came up clean.
Adam and Jamie declared the myth confirmed at this point, commenting that a healthy person would find it very difficult to avoid being contaminated by a sick one who did not attempt to keep from spreading his/her germs.
|Tornado-force winds can propel window glass with enough speed to decapitate a person.||Confirmed||Kari and Tory obtained a pig spine with skin and muscle, trimmed it down to resemble an elongated neck, and attached a dummy head. The Build Team then obtained several 1⁄8 in (3.2 mm) thick glass panes that conformed to building codes for houses in tornado-prone areas, and began throwing them at "Neck Man" by hand. They had difficulty reaching a suitable combination of speed and accuracy; none of their throws inflicted more than a minor wound.
Tory then built a frame to attach to a pickup truck, with a heavy 14.3 lb (6.5 kg) glass sheet loosely mounted to hit Neck Man edge-on but break loose just before impact. The first attempt, at 80 mph (129 km/h) – the equivalent kinetic energy of a light pane traveling 300 mph (483 km/h) in an F5 tornado – sliced the head off. A second test at 40 mph (64 km/h) (150 mph (241 km/h) for a light pane in a less powerful F2 tornado) also cut completely through the neck. However, the glass did not break out of its holder, indicating that the momentum of the truck may have affected the result.
Back at the workshop, the team built a rig to throw 1⁄4 in (6.4 mm) thick panes (twice as heavy as the original ones) at 70 mph (113 km/h). After several tries, they were able to score a hit that completely and cleanly severed the head, leading them to declare the myth confirmed.
Episode SP13 – Top 25 Moments
- Original air date: June 16, 2010
A countdown of the cast's 25 favorite myths and moments to date, with comments from Adam, Jamie, and the Build Team.
|#||Name (in countdown)||Myth featured||Comments|
|25||JATO Rocket Car||Jet Assisted Chevy||First myth tested|
|24||Guns & Ammo||Tree Machine Gun||Frequent use of various firearms on the show|
|23||Science Is Golden||Bullets Fired Up||Scientific analysis used in exploring myths|
|22||Failure Is Always an Option||Supersize Rocket Car||Experiments going wrong in unexpected ways|
|21||World Firsts||Breaking Glass||First "World First" - First time a person had been filmed breaking a glass with their voice|
|20||Mean Machines||Steam Powered Machine Gun||Massive and intricate builds for testing myths|
|19||MythBusters Dress Code||Various||Safety gear and ridiculous costumes used by the cast|
|18||Underwater Car||Underwater Car||Demonstrating survival skills some viewers were able to actually use in a real life situation|
|17||Not So Steely Stomachs||Various||Cast members vomiting on camera|
|16||Surprise! Surprise!||Bull in a China Shop||Unexpected results from an experiment|
|15||Buster: Honorary MythBuster||Exploding Pants||The trials and tribulations of Buster|
|14||Duct Tapetastic||Duct Tape Sailboat||The cast finds new uses for duct tape|
|13||Weird & Wonderful||Vacuum Toilet||Most bizarre "what the hell are we doing?" moments|
|12||Lunar Lunacy||NASA Moon Landing||A story intended to promote critical thinking among viewers|
|11||Shark Tales||Playing Dead||Shark-related myths|
|10||Flatus Burning||Igniting a Flatus||A segment that had not previously aired on the show|
|9||Human Guinea Pigs||Various||Cast members taking part in stunts and physical testing|
|8||Bring Out the Blimp||Hindenburg Mystery||An experiment whose dramatic outcome matched closely with the real-world event on which it was based|
|7||One Line Wonders||Various||Cast members' memorable lines and recurring themes|
|6||Alcatraz Escape||Escape from Alcatraz||A classic story that left several questions unanswered even after it was finished|
|5||Car Drop||Racing Gravity||The Build Team's favorite myth|
|4||Accidents Do Happen||Various||Montage of Adam and Tory's frequent mishaps on camera|
|3||Rocketry in Motion||Compact Compact Supersized, Snowplow Rocket Replication||The use of rocket engines in revisiting a pair of myths|
|2||Lead Balloon||Lead Balloon||Adam and Jamie's favorite myth|
|1||Explosive Fan Favorites||Several, with the main, final representation being the exploding cement truck from Cement Mix-Up.||A collection of favorite explosions, as chosen by fans and cast members|
Episode 148 – Hair of the Dog
- Original air date: October 6, 2010
Beat the Bloodhound, Part 2
A revisit of the "Fool the Bloodhound" myth from 2007. Adam and Jamie investigated new suggestions for evading detection by a scent hound, using the same dog (Morgan) and handler from that earlier episode. Given a five-minute head start, Jamie fled while using…
|…a literal red herring.||Busted||Jamie spread canned herring across his path in attempt to throw Morgan off the scent. The dog stopped to eat the fish and passed the point where Jamie turned off the main trail, but later doubled back and found him.|
|…a suit treated with cleaning products intended to neutralize odors.||Busted||Despite Jamie's suit and choice of hiding places to shelter himself from the breeze, Morgan found him without difficulty.|
|…an escape route that crosses a river (rather than a small stream as in 2007).||Busted||Morgan was able to pick up Jamie's scent in the water and find him. Adam and Jamie concluded that the size of the body of water had no effect on a bloodhound's ability to track fugitives.|
|…a complete full-body cleaning and equipment to mask his scent.||Busted||Jamie scrubbed himself down and rinsed with wipes meant for use by hunters to disguise their scent, then put on a protective suit with a gas mask and air filter to remove odors from his breath. He sprayed a false scent trail using his own wash water, threw the sprayer into the tall grass, and hid. The trail distracted Morgan for a short time, but he soon found the sprayer and tracked Jamie to his hiding place.|
Adam and Jamie also explored a bloodhound's ability to single out a suspect from a group.
|If several suspects flee at once, the dog can find a particular one after being given his/her scent.||Plausible||Five men each provided one unwashed shirt, then fled together for a short distance before splitting up. Morgan was given one of the five shirts for a scent, then began to track; he initially had the correct trail, but soon became confused and could not find it again. In a second test, he did find the correct suspect, leading Adam and Jamie to conclude that picking a single suspect out of a lineup in this manner was a plausible but unreliable method. However, it was noted that Morgan was not trained to track multiple targets.|
Beat the Sniffer Dog
Four contraband-detecting dogs – Buck, Rex, Gypsy, Max – and their handlers took part in a series of tests arranged by the Build Team. They investigated the possibility of fooling the dogs by…
|…masking the scent of the contraband with a much stronger one.||Busted||The contraband was packed into a plastic container with one of five strong scent materials (coffee, peanut butter, citronella, perfume, and bleach) and hidden in a large warehouse filled with props. Rex was able to find the package every time, with only the citronella slowing him down to any degree.|
|…using an ultrasonic dog repellent device.||Busted||Kari tested out such a device on her own two puppies to verify its effectiveness. The Build Team then set up a typical outdoor-concert scenario, with over 200 people gathered in a parking lot and possible distractions for the dog: a car with stereo blaring and a fast food truck. One person was given the contraband and the repellent device to trigger whenever Gypsy came too close, but she was able to ignore it and find her target.|
|…distracting the dog with another scent.||Busted||The concert scenario was reset and a female dog in heat was placed near the person with the contraband, in an attempt to distract the male sniffing dog with pheromones. Max did become confused, whereupon his handler removed both him and the female from the area; after a few minutes, Max was brought back in and successfully found the contraband. The handler noted that it is standard procedure to remove all other dogs from the area being searched to prevent this sort of situation.|
|…packing the contraband with materials intended to cause a false positive and/or repel the handler.||Busted||Tory fitted a false bottom into a suitcase, loaded the contraband into this, then packed that suitcase and several others with the chosen material. The cases were hidden in a large warehouse full of luggage. Tests with strongly aromatic cheese and sausage, and with dirty diapers from Kari's baby, failed to deter Buck from picking the correct bag or his handler from searching it to find the contraband. The handler noted that both dogs and their handlers are thoroughly trained in seeing through attempts to deceive them.|
Episode 149 - Storm Chasing Myths
- Original air date: October 13, 2010
The episode includes a memorial to Sanjay Singh, an EMT and "Honorary MythBuster" who died in 2010.
|The Storm Chasers' specially reinforced vehicles can withstand an EF5 tornado with winds up to 250 miles per hour (402 km/h). (They have been exposed to 140–150 mph (225–241 km/h) winds in actual storms.)||Confirmed||At a Michigan airfield used by Kalitta Air, the group used the engines of a Boeing 747 to generate the needed wind forces and speeds, with a vehicle positioned directly behind one engine's exhaust. The first test was carried out at a distance corresponding to 160 mph (257 km/h) winds (mid-EF3 tornado range); a passenger car had its hood torn off and was pushed back 50 ft (15 m). The Storm Chasers' vehicles, TIV2 and Dominator, suffered no damage in this trial except for TIV2's door flying open because Sean had forgotten to lock it. Each vehicle's anchor spikes allowed it to keep its position on the ground.
In the second test, the vehicles were placed so as to feel the entire 250 mph (402 km/h) wind. Within seconds, the car lost its hood and was thrown backward 250 ft (76 m). TIV2 held its position, while Dominator slid across the ground but did not tumble due to its low profile that kept the wind from blowing beneath it. The only signs of damage were a bent anchor spike and a twisted license plate holder, respectively. Noting that an occupant in either vehicle would easily have survived, Adam and Jamie declared the myth confirmed and stenciled their seal of approval on each one.
|It is possible to build a personal tornado protection device.||Confirmed||Three criteria were chosen for testing - portability, degree of protection against flying debris, and ability to withstand up to 135-mph winds (the equivalent of an EF3 tornado). Adam and Jamie worked on separate prototypes: an inverted bowl topped by an airfoil to push it into the ground, and a low-profile tent with an anchored base that could pivot to face changing winds. Jamie's design performed considerably better than Adam's and was chosen for full-scale testing.
A prototype built from polyethylene, aluminum, ballistic nylon, and duct tape was taken to the Kalitta airfield; it could be folded up and carried in a backpack. For the debris test, Jamie fired wooden cylinders at the shield, using his soda-can launcher from "Cup vs Car". Buster and Adam each took a turn inside the shield, with no ill effects. Adam then stood in the 747's exhaust until he lost his footing, which occurred at 130 mph (209 km/h). This wind speed was used as a minimum that the shield would have to endure without any injury to Jamie inside. It tore apart at 135 mph (217 km/h) due to failure of the attachment points between the panels. After these were redesigned, Jamie was able to hold his ground in 180 mph (290 km/h) winds – the equivalent of an EF4 tornado.
Episode 150 - Cold Feet
- Original air date: October 20, 2010
When Feces Hit the Fan
|When feces hits a fan, everybody around the fan will get hit by it.||Plausible||Since using real feces was too dangerous (and smelly), the Mythbusters created their own artificial feces for testing. Against a plastic 12 in (30.5 cm) fan, the feces was not spread very well. The metal 20 in (51 cm) fan could spread the feces much better, but the Mythbusters still weren't satisfied with the results. They then tried feces with differing consistencies, and found that softer feces was the best choice. However, the 12 and 20 inch fans were still unable to completely spread the feces around. They then upgraded to a 30 in (76 cm) fan and got better results, with feces being flung as far as 40 ft (12 m) as well as hitting all of the targets. They then used an even larger fan and threw feces at it from all directions, which successfully threw feces everywhere. The Mythbusters decided that the myth was plausible under the right circumstances.|
This myth is based on the popular saying "getting cold feet".
|Your feet get physically colder when you are afraid of doing something.||Plausible||The Build Team first measured the temperature of their feet using skin sensors, and found the average temperature of a human foot is 96 °F (36 °C). To test this myth, each member of the Build Team was given a specific test that would make them feel the most uncomfortable to perform. Tory, being uncomfortable with high heights, rode as a passenger in a stunt plane as it performed numerous aerial maneuvers. The data showed that Tory's feet only got colder shortly before each stunt was performed, but the temperature only changed by a degree. Grant, who is uncomfortable with fish and bugs touching him, was exposed to tarantulas which crawled all over his head in a specialized container. During the test, the sensors recorded Grant's foot temperature dropping almost 15 °F (8.3 °C). Kari, who is a vegetarian, was forced to eat a live wax worm and cricket. Her foot temperature also dropped 15 °F during the test. They declared the myth plausible since all three of them experienced temperature drops in their feet. Grant explains that this is most likely due to the fact that when humans feel fear, the outer blood vessels in the hands and feet constrict, drawing blood and warmth away from the extremities and towards the muscles needed to either fight or run.|
Episode 151 - Tablecloth Chaos
- Original air date: October 27, 2010. Adam and Jamie explore a large-scale version of an old magic trick, while the Build Team investigates a popular belief about brain activity.
|A motorcycle can yank the cloth off a fully set banquet table without disturbing the place settings. Inspired by a viral video that purports to show this feat.||Busted||For preliminary testing, Adam set up a small table and cloth, with a full wine bottle, a glass, and a vase of flowers. After trying several combinations of cloth material and weight of items on the table, he was able to pull the cloth out and leave the setting intact. Lightweight satin cloths gave the best result, and the trailing edge of the cloth had to be flush with the table to reduce friction against the edge.
Large-scale tests were first set up in a hangar at Naval Air Station Alameda, involving a 24 ft (7.3 m) long table with two dozen place settings. In the first test, Jamie hooked his sport cycle directly to the cloth; accelerating from a standing start, he pulled nearly everything off the table. Further trials - first in the hangar, with 200 ft (61 m) of slack and the cycle at 60 mph (97 km/h); then on the airfield, with 600 ft (183 m) and 100 mph (161 km/h) - left more items standing, but still overturned several of the settings. Finally, to replicate the results of the video, Adam applied dry lubricant to the tablecloth and then covered it with hard plastic, upon which the settings were placed. Although Jamie successfully yanked out the cloth from a standing start, he and Adam declared the myth busted due to the need to fake the setup.
|Humans only use 10% of their available brain capacity.||Busted||After Grant consulted with a neurosurgeon about measuring activity in the various parts of the brain, Kari set up a series of four tests targeting memory, calculation ability, decision making, and visual information processing. Grant took the tests as an electroencephalogram recorded his brain activity; the results indicated a normal level, but could not provide an exact percentage since it only monitored activity on the surface of his brain.
For a more representative image, the Build Team visited UCSF to do a magnetoencephalogram study. Tory took the tests this time, resulting in an overall activity of 35%. In a third trial, this one involving a functional MRI scan, Tory registered 15% while at rest, but 30% as he told a story with the intent of activating as many areas of his brain as possible. Based on these totals, the team declared the myth busted.
Episode 152 - Arrow Machine Gun
Original air date of November 3, 2010.
Arrow Machine Gun
|The ancient Greeks designed and/or built a weapon that was capable of fully automatic fire using arrows.||Plausible||
Based on fragments of design information from historical records, Adam and Jamie began to put together a period-appropriate weapon platform, using sprockets, a chain, and a hand crank as the heart of the reloading mechanism. After some preliminary tests in the M5 workshop, they took the prototype outside for further trials. Three criteria were initially chosen to evaluate its performance: range of at least 200 yards (183 m), rate of fire at least 5 rounds per minute, and enough accuracy to hit a human-sized target. A fourth criterion, ability to hit targets faster than a human archer, was added later.
In the first field tests(Brady Ellison to provide a benchmark for comparison. He hit the targets in 2 minutes, using 11 arrows. After further breakdowns and repair work, Adam and Jamie accomplished the feat with 15 arrows in 1 minute and 50 seconds. They classified the myth as plausible since they could find no records of this weapon actually being built and used in combat.), the weapon achieved a 230 yd (210 m) range; in an accuracy test, though, the mechanism repeatedly broke down and further shop work was needed. Adam and Jamie added wheels for maneuverability, as well as an angle finder to adjust the trajectory, and fine-tuned the reloading mechanism. They set up 5 targets at 90 yards (82 m) and brought in professional archer
Tipsy vs. Tired
|Driving while suffering from sleep deprivation is more dangerous than driving under the influence of a minor amount of alcohol.||Confirmed||Grant designed courses to test both stop-and-go city driving with various distractions, and highway driving with long, monotonous stretches of road. For the "tipsy" test, Kari and Tory each took enough drinks to give them a blood alcohol content just beneath 0.08%, the legal limit in California. Kari made 7 mistakes in the city test, then veered out of her lane 104 times (58 seconds altogether) during the highway test. Tory's results were 2 mistakes and 4 times/1 second, respectively.
Once they had both sobered up, they had to remain awake for 30 hours in the M7 workshop, with various devices to keep them busy. They were not allowed any sugar, caffeine, or other stimulants during this time. The following morning, they drove both courses again for the "tired" test. Kari had 6 mistakes (city) and 210 times out/332 seconds (highway), while Tory had 5 mistakes (city) and 110 times out/77 seconds (highway). Based on the general worsening of their performance after going without sleep, the Build Team declared the myth confirmed.
Episode 153 - Mini Myth Madness
Original air date of November 10, 2010.
As a tribute to their fans, the MythBusters randomly drew six fan-submitted letters and tested the myths and questions in them. One letter contained three separate myths, bringing the total number of tests in this episode to eight.
|A scuba diver can wear a tuxedo underneath his drysuit, go underwater, resurface, strip off his scuba gear, and be able to present the tuxedo perfectly. (This was inspired by the pre-title sequence of Goldfinger.)||Confirmed||Adam and Jamie donned tuxedos after meeting with an image consultant to learn about the particulars of black-tie formal dress. Adam boarded a boat to serve as a comparison standard, while Jamie put on a drysuit and took a 40-minute scuba dive to rendezvous with him. Once Jamie climbed aboard, removed the suit, and brushed himself down, both his tuxedo and Adam's were found to be in presentable condition for a party.|
|A car's tire pressure can significantly affect its fuel efficiency.||Confirmed||The Build Team ran a car through a test course with regular tire pressure, extremely overinflated and deflated tires, and slightly overinflated and deflated tires, and measured the resulting fuel efficiency for each. The data showed that lower than normal tire pressure resulted in significantly more fuel being consumed, due to a larger amount of surface area in contact with the road to increase friction. Higher than normal pressure did improve fuel efficiency; however, the Build Team discouraged the idea of overinflating tires due to the hazards involved and negligible cost savings.|
|A laptop can stop a point-blank blast from a shotgun.||Plausible||Using a 12-gauge shotgun, the Build Team fired a load of birdshot at a 4-year-old laptop in a leather bag from point-blank range, with a block of ballistic gelatin behind it to stand for the owner's body. The birdshot easily punctured every area of the laptop that was hit and damaged the gelatin severely. In a second test, they targeted the battery – the component with the highest density – and found that none of the pellets would go through it. The team classified the myth as plausible, since only a very lucky shot would be stopped.|
|A hair weave can stop a .40 caliber bullet.||Busted||The Build Team replicated the conditions of the news story on which the myth was based, firing at a ballistic-gelatin head through a car's rear windshield from 8 feet (2.4 m) behind it. The bullet easily penetrated the head's hair weave and exited through the front, pulling some of the hair with it. The team hypothesized that in the actual shooting, the bullet may have ricocheted off a metal part before coming to rest near the victim's head, giving the illusion that the weave stopped the bullet.|
|A refrigerator door can stop a spray of 9mm bullets.||Busted||The Build Team fired numerous 9mm bullets at a modern refrigerator door stocked with items commonly found in refrigerators. Every shot easily penetrated both the door and a block of ballistic gelatin placed behind it, indicating lethal impacts. They achieved the same result with a double-walled steel refrigerator door from the 1950s.|
|What is the best way to limit the spread of germs created by sneezes?||Use your elbow||Adam and Jamie tested three different techniques of containing sneezes – a hand, an elbow, and a handkerchief – with the help of snuff and food coloring as in "Fever Pitch". Adam's sneezes into his hand spread droplets up to 9.5 feet (2.9 m) away, while Jamie's elbow stopped nearly all of the droplets from his sneezes. The few that were not stopped traveled only 0.5 feet (0.15 m). When Adam sneezed into the handkerchief, those droplets also traveled 0.5 feet (0.15 m) but soaked his hand as well. They noted that the germs would quickly spread to both the user's hand and other items that touched the cloth, defeating the purpose of using it. The elbow was judged to the most effective device for containing germs from a sneeze.|
|It is easy to take candy from a baby.||Busted||Adam and Jamie measured the amounts of force required to simply pick up a lollipop versus taking one from a baby. They tried snatching the lollipop from babies of various ages (6–18 months), and found that the babies would actively fight to keep the candy. Younger ones tended to use brute force to hold on to the lollipop, while older ones used different tactics such as crying and moving the candy out of reach. Picking up the candy required 0.08 pounds-force (0.36 N), while taking it from the babies took an average of 2.01 pounds-force (8.9 N), indicating that the latter is actually harder to do than the former.|
|If a bottle of beer is put in the freezer for long enough, removed while it is still liquid, and given a sudden shock, the beer will instantly freeze solid.||Confirmed||The Build Team left bottles of beer inside a freezer for various times, ranging from 120 minutes to 180 minutes, before removing and striking them. They found that 180 minutes of cooling time was necessary to allow the instant freezing to occur. The most likely explanation is supercooling, in which a liquid, beer or otherwise in a very clean container can be cooled below its freezing point, but will rapidly form crystals and freeze if it is disturbed in any way.|
Episode 154 – Reverse Engineering
- Original air date: November 17, 2010
|A certain 1970s sports car was so badly designed that it was more aerodynamic if the body were turned backward on the frame.||Busted||Adam and Jamie first placed a small-scale car model in a water chamber to visualize the airflow around it. Whether it faced forward or reverse, they saw a large area of turbulence above the trailing end. Next, they measured the amount of drag force on the model when placed in a wind tunnel to gauge its aerodynamic character. The results were 0.34 and 0.37 pounds for forward and reverse, respectively.
In full-scale testing, Adam drove a Porsche 928 through three tests: a timed quarter-mile, time to accelerate from 0 to 60 mph (0 to 97 km/h), and fuel efficiency for a 1 mi (1.6 km) course at 50 mph (80 km/h). The car's body was then removed, turned around, and reattached to the chassis, and Adam performed the same three tests. The forward car yielded averages of 14.0 seconds in the quarter-mile, 8.0 seconds in acceleration, and 0.87 lb (394.63 g) of fuel used. In reverse, the corresponding results were 16.6 seconds, 8.66 seconds, and 1.25 lb (566.99 g) of fuel; these unusual changes led Adam and Jamie to suspect that the tests were inconclusive. Finally, they brought the cars up to full speed – Adam in the reversed one, Jamie in an unmodified one – then put them into neutral and let them coast to the finish line. Jamie finished the race first, leading him and Adam to conclude that the cars really were more aerodynamic as designed.
Surf and Turf
|If a car with a surfboard on its roof gets into a 40 mph (64 km/h) collision and stops dead, the board will be thrown ahead with enough force to punch through another car's windshield and kill the driver. Based on a scene in the film Lethal Weapon 2.||Busted||The Build Team set up a full-scale test, towing a car with a board ("board car") into a parked vehicle ("crash car") set in front of a crash barricade to stop it dead on impact. A third vehicle ("target car") was placed 40 ft (12.2 m) behind the crash car, pointing directly at the oncoming board car. Three attempts to replicate the movie crash failed, with the board pivoting sharply down and/or getting caught in the crash car's wreckage after flying off the roof.
Small-scale tests in the water chamber revealed that the board would not generate enough lift force to keep itself on a level path, leading the team to focus simply on the impact of the board against the windshield. Tory built a rig to launch it straight ahead, using bungee cords to provide the needed force; once it was properly calibrated, the team set a target vehicle directly in front and put Buster (outfitted with a human-analog neck) in the driver's seat. The board only glanced off at 40 mph (64 km/h), while at 85 mph (137 km/h) it penetrated partway but was stopped by the safety glass in the windshield. Having failed to replicate either the movie crash or its results, the team declared the myth busted.
Episode 155 – Inverted Underwater Car
- Original air date: November 24, 2010
Turn Turtle Car
|It is more difficult to escape from a sinking car that flips upside down than from one that remains right-side up. A revisit of 2007's Underwater Car myth.||Confirmed||Jamie built a giant hamster wheel to spin a person underwater in an attempt to induce disorientation. Though Adam was consistently able to swim to the surface, Jamie had some trouble doing so. They arranged a full-scale test at a man-made lake, placing a car on a barge and setting it up to flip upside down when pulled into the water; the maximum intended depth was 15 feet (4.6 m). Adam sat in the driver's seat as in "Underwater Car", while emergency air tanks and a safety diver were also placed inside. His goal was to escape without either breaking a window or using the air supply.
As soon as the car hit the water, it turned over and the windshield broke and began to leak water. Adam had to wait to open a door until the car was completely filled, becoming heavily disoriented as the car did two more half-flips. He eventually surfaced, but admitted that he had had to use the air supply, and he and Jamie declared the myth confirmed.
Gas Room Boom
|In a room filled with flammable gas, firing a pistol through a full carton of milk will prevent its muzzle flash from igniting the gas. Inspired by a scene from the film Kiss the Girls.||Busted||The Build Team constructed a full-scale test kitchen, with typical fixtures and appliances as well as a breakaway wall to relieve the pressure from any explosions. Setting up Buster and a dummy to duplicate the film scene, they pumped in enough methane (representing natural gas) to achieve a 10% concentration, the center of the gas's flammability range in air. Firing a 9 mm SIG Sauer pistol failed to produce an explosion, whether or not a carton of milk was placed in front of it.
The team then built a bulletproof glass box to serve as a small-scale kitchen, pumped in the methane, and tested three different weapons – the SIG Sauer, a 9 mm Glock pistol loaded with +P rounds, and a .44 Magnum revolver. None of these caused the methane to explode when fired, so the team switched to more flammable hydrogen gas. Without the milk, the Glock gave an explosion where the SIG Sauer did not, so they built a dollhouse-sized kitchen for mid-scale testing with the milk in place. This test ended in a blast that blew out the walls and roof, leading the team to classify both the movie myth and its underlying concept as busted.
Episode 156 – Bug Special
- Original air date: December 1, 2010
The Mythbusters take a crack at a bee-related myth based on a viral video.
|One thousand honey bees are capable of lifting a laptop.||Busted||Adam and Jamie started by covering a laptop with glue and bee-friendly adhesive. They then started attaching bees to the laptop, but quickly found that the video's showing of using a single frame of bees was inaccurate. At least five frames were needed to achieve an appearance similar to the video, but the bees could not lift the laptop.
Small-scale tests indicated that an average honeybee could carry 96 milligrams of weight; based on this result, it would take at least 23,000 bees to lift the laptop. Adam counted the number of bees per square inch in the frames, measured the laptop's surface area, and calculated that only 2,300 bees would fit onto it. As a further demonstration, Jamie used toy helicopters to show that any lift generated by the bees' wings would be counteracted by the force of air being pushed down onto the payload, making it impossible to lift anything as shown in the video. He and Adam declared the myth busted at this point, then devised a method by which the video could have been faked - by attaching fishing line to the laptop, covering it with bees, and hoisting it with an off-camera stick or handle.
Fly vs Water
According to the Build Team, this was one of the most demanded myths from the fans. The popular theory is that since water refracts light, it would confuse flies' compound eyes.
|Bags of water hung from the ceiling can repel flies.||Busted||The Build Team built a rig consisting of three chambers separated by trap doors. The first chamber would hold the flies, the second would hold some rotten meat, and the third would hold both rotten meat and a bag of water. They then released over 5,000 flies from the first chamber and waited to see how many flies would go into each of the other two. After the chambers were sealed off, they let all the flies die and collected the corpses to weigh for comparison. The chambers with and without the water contained 35 and 20 grams of flies, respectively, busting the myth.|
Biker vs Bug
|A person riding a motorcycle at high speed can be killed if he impacts a bug.||Plausible||Doing some research, the Build Team discovered that the most vulnerable point on the human body was the throat; an impact with 76 pounds of force could cause the windpipe to swell and suffocate the victim. They attached a force plate to a mannequin torso, put it in a sidecar attached to a motorcycle, and had Tory drive at 85 miles per hour so that the plate would hit an insect suspended at throat height. Tests with a common fly, a cicada, and a Goliath beetle (the largest flying insect they could find) yielded 10, 37, and 100 pounds of force, respectively.
To investigate the speeds needed to inflict a lethal injury at head or chest height, the team set up an air cannon to fire a Goliath beetle analog at the force plate. An impact at 120 mph gave 285 pounds of force, while a test at 200 mph (described as the speed of the fastest motorcyclist ever to get a traffic ticket) yielded 500 pounds. Although neither of these was high enough to result in a fatal injury, the team deemed the myth plausible, since a heavy enough insect hitting just the right spot on a rider could lead to his death.
Episode 157 – President's Challenge
- Original air date: December 8, 2010
Archimedes Solar Ray 3.0
|Up to 500 people with mirrors can focus the sun's light enough to set a wooden ship ablaze.||Re-Busted||Recalling their experience with previous experiments, Adam and Jamie knew that it would be extremely difficult to coordinate all 500 people into focusing their mirrors into a single spot, so they set about trying to construct aiming systems to assist the shield bearers. While Jamie's efforts with a gunsight system proved unsuccessful, Adam found that stretching a net across the front of the mirrors provided a usable visual guide for aiming the beams. After a test in the workshop with 12 people holding mirrors proved the feasibility of this method, 500 double-sided mirrors were delivered and the crew covered one side of each with bronze Mylar film to represent the Greek mirrors, leaving the other side intact.
In the full-scale test, 500 high school students stood in for the Greek soldiers trying to set a boat's sails on fire, using first the bronze and then the modern mirrors. Both of these efforts failed, as did a third trial in which the boat was pulled close enough to the shore for Jamie (as an invading captain on the boat) to throw tennis balls and hit the students. Though Adam and Jamie declared the myth busted, Jamie noted that the reflections from the mirrors were extremely distracting and had blinded him temporarily, and that this may have been Archimedes' true intent in recommending their use in warfare.
|A strong enough punch, directed down onto the hood of a moving SUV, can cause it to somersault into the air. This myth was based on a scene from the film Hellboy.||Busted||The Build Team first did some tests to determine the amount of force needed on the hood in order to get the SUV's front end to touch the ground. They found that a total of 5,000 pounds was required, so Tory built a giant fist from a steel cylinder, to be dropped from a crane to give that much force on impact. The first few tests revealed problems with positioning and timing of the drop to hit the hood; after they fine-tuned the system, they scored a solid hit but failed to flip the SUV.
Reverting to small-scale testing with a toy SUV, the team experimented with combinations of fist weight, vehicle speed, and center of gravity, but still could not get a flip. They declared the myth busted at this point, then attached a long lever to a full-sized SUV's roof in order to move the impact force away from the front axle, which served as the fulcrum for the car after impact. Even with this modification, the rear end only flipped 45 degrees into the air and did not somersault forward.
Episode 158 – Green Hornet Special
- Original air date: December 15, 2010. Seth Rogen, star of the 2011 film The Green Hornet, gives the cast two myths to test concerning the Green Hornet's car, Black Beauty.
|If a car is completely buried with a bulldozer parked on top, it can set off onboard explosives to throw the bulldozer out of the way without injuring the passengers, as long as they shield themselves properly.||Busted||Adam and Jamie fitted a car's front seat backs with armor plating and loaded in 16 pounds of explosives, replicating Black Beauty's rockets and seats. They then fitted two dummies (representing the Green Hornet and his assistant Kato) with pressure sensors and placed them in the back seat behind the armor. The car was then lowered sideways into a trench and buried, and a bulldozer was placed on top. When the explosives were set off, they created enough of a crater for the bulldozer to sink partway in; however, both the car and the dummies were severely damaged and the sensors were destroyed.
Declaring the movie myth busted at this point, Adam and Jamie turned their focus to making the bulldozer fly. They built two steel models and tried two different explosives – 4 pounds each of TNT (high speed) and ANFO (low speed). The TNT blasted one model to pieces, while the ANFO tore the other apart at the welds and threw the pieces far enough to convince Adam of its usefulness in this respect. For a full-scale test, they buried 250 pounds of ANFO under a bulldozer, with the goal of moving it away without destroying it. The resulting blast ripped the machine apart, left a deep crater, and threw pieces over 500 feet (150 m). Adam and Jamie commented that any explosive charge big enough to move the bulldozer would certainly kill the occupants of the buried car.
Elevator Car Cut
|If a bullet-riddled car drives halfway into an elevator that begins to ascend, the car will be cut in half when the elevator reaches ceiling level, and the front end can be driven out.||Busted (1st part), Plausible (2nd part)||Kari converted an actual 1964-65 Imperial into a Black Beauty replica, and Grant and Tory fired over 200 rounds of submachine gun ammunition into it to replicate the movie car's condition. The Build Team then constructed a rig to replicate the elevator, using a forklift that could generate 35,000 pounds of lifting force. When they put the car in position and lifted, it got caught and crushed at "ceiling" level without being sliced in half.
The team declared the first half of the myth busted, but Seth revealed that Black Beauty was equipped with a system to split itself in emergencies. Concentrating on the possibility of driving the front half, they cut the rear half off another car. After several adjustments, they were able to get the front started and drive it a short distance until it hit a wall. Seth then said that Black Beauty had a reserve fuel tank under its hood, so the team installed one in their half-car and took it to Petaluma Speedway for one more test. This time, Tory was able to complete 20 laps at speeds up to 40 miles per hour. The team decided that the idea of driving the half-car was plausible, if the driver made the needed extensive modifications ahead of time.
Episode 159 – Operation Valkyrie
- Original air date: December 22, 2010
|Operation Valkyrie, a World War II plot to assassinate Adolf Hitler with a bomb, failed only because Hitler's meeting was moved from an underground bunker to an aboveground conference room with windows.||Busted||As Jamie examined photographs and reports of the explosion, Adam used a water tank to demonstrate the ability of shock waves to rebound off solid surfaces. For a small-scale test, Adam built models of both the bunker and the conference room from steel plates. When a blasting cap was set off in each, the peak pressures were measured at 14 and 55 pounds per square inch for the room and the bunker, respectively.
To set up a full-scale test, two intermodal containers were outfitted as replicas of the two scenes. Adam cut window openings and fitted glass for the conference room, while Jamie dug a trench and partially buried the bunker due to time constraints. Each was equipped with a rupture disc set to burst at 100 psi, a block of polyurethane foam to gauge shrapnel injuries to Hitler, and a charge of C-4 with the same explosive power as the actual bomb. Peak pressures were measured at 18 psi (room) and 30 psi (bunker), with heavy damage in both scenes, intact rupture discs, and non-lethal shrapnel injuries consistent with the reports. Adam and Jamie concluded that the higher blast pressure was survivable due to its short duration, and that factors such as the quantity and placement of the explosive would have had the main effect on its lethality.
Slap Some Sense
|It is possible to bring an impaired/shocked person back to some degree of proper mental functioning by slapping him/her in the face.||Confirmed||As Kari consulted a military emergency physician to learn about the fight-or-flight reflex, which can be triggered by sudden trauma, Grant and Tory built a face-slapping rig to deliver a controlled amount of force. Grant was first to take a series of four tests covering reflexes, calculation, coordination, and visual/communication skills. The tests were conducted under three conditions: "normal", "impaired" (sitting in a truck full of ice blocks for 30 minutes before each test), and "impaired" followed by a slap before each test. Grant's "impaired/slapped" results were not as good as his "normal" baseline, but markedly better than his "impaired" scores.
For a different test of judgment and coordination, Kari and Tory did an exercise on a shooting range and added more impairments: going without food or sleep for an entire day, then sitting in the ice for 30 minutes and being slapped. Their results followed the same trend as Grant's, leading the Build Team to declare the myth confirmed.
- "Mythbusters 2010 Episode Guide". Discovery Channel. Retrieved November 7, 2010.
- "Duct Tape Hour 2". MythBusters. Season 2010. Episode Special 3. May 12, 2010. 01:41 minutes in. Discovery Channel. "It's time for the Duct Tape Special Number 2"
- "MythBusters Top 25 Moments". MythBusters Episodes. TV Guide. Retrieved June 17, 2010.
- "Car Conundrum". MythBusters Episodes. TV Guide. Retrieved June 17, 2010.
- "Discovery Channel :: TV Listings :: Mythbusters: Car Conundrum". Discovery Channel. Retrieved June 23, 2010.
- "Mythbusters (UK)". Discovery Channel. Retrieved October 26, 2010.
- "Discovery Channel TV Listings". MythBusters: Episode Info. Discovery Channel. Retrieved December 13, 2010.
- General references