MythBusters (2011 season)
|MythBusters (2011 season)|
|Country of origin||Australia
|No. of episodes||22 (includes 3 specials)|
|Original network||Discovery Channel|
|Original release||April 6– November 30, 2011|
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 myths tested on the show as well as the results of the experiments (the myth is Busted, Plausible, or Confirmed). On March 16, 2011, Discovery Channel announced that the 2011 season would commence airing on April 6, 2011.
- 1 Episode overview
- 2 Episode 160 – "Mission Impossible Mask"
- 3 Episode 161 – "Blue Ice"
- 4 Episode 162 – "Running on Water"
- 5 Episode 163 – "Bubble Trouble"
- 6 Episode 164 – "Torpedo Tastic"
- 7 Episode 165 – "Blow Your Own Sail"
- 8 Episode 166 – "Spy Car 2"
- 9 Episode 167 – "Dodge a Bullet"
- 10 Episode 168 – "Fixing a Flat"
- 11 Episode SP15 – "Planes, Trains, and Automobiles"
- 12 Episode 169 – "Let There Be Light"
- 13 Episode 170 – "Paper Armor"
- 14 Episode 171 – "Bikes and Bazookas"
- 15 Episode 172 – "Newton's Crane Cradle"
- 16 Episode 173 – "Walk a Straight Line"
- 17 Episode 174 – "Duct Tape Plane"
- 18 Episode 175 – "Flying Guillotine"
- 19 Episode 176 – "Drain Disaster"
- 20 Episode SP16 – "Location, Location, Location"
- 21 Episode SP17 – "Wet and Wild"
- 22 Episode 177 – "Wheel of Mythfortune"
- 23 Episode 178 – "Toilet Bomb"
- 24 References
- 25 External links
|No. in series||No. in season||Title||Original air date||Overall episode No.|
|160||1||"Mission Impossible Mask"||April 6, 2011||175|
Can realistic facial masks be used to bypass security measures as shown in the Mission: Impossible television series?
Is it possible to start a merry-go-round spinning by shooting bullets at it, as depicted in Shoot 'Em Up?
Is it possible to knock a dropped gun out of reach by hitting it with bullets fired from another one?
|161||2||"Blue Ice"||April 13, 2011||176|
Can a magazine and toaster be used to blow up a room full of flammable gas, as depicted in The Bourne Supremacy?
Can the contents of an airplane toilet leak out mid-flight and freeze into a lethal projectile?
|162||3||"Running on Water"||April 20, 2011||177|
Can a combination of footwear and technique allow a person to run on water?
Can a person survive an explosion by hiding behind a table, a car, a dumpster, or a cinderblock wall?
|163||4||"Bubble Trouble"||April 27, 2011||178|
Can a person swim through bubbling water?
Can an arrow with explosives split a tree in two?
|164||5||"Torpedo Tastic"||May 4, 2011||179|
Did the Syrians design a water-skimming torpedo as early as the 13th century?
If a truckload of wine catches fire, will the bottles blow their corks 100 feet and sound like a machine gun?
|165||6||"Blow Your Own Sail"||May 11, 2011||180|
How well do movie sound effects compare to their real-world counterparts?
Can a sailboat stranded in calm water start moving by blowing air into its sail with an onboard fan?
|166||7||"Spy Car 2"||May 18, 2011||181|
Can wheel spikes and a hood-mounted machine gun be used to disable a pursuing vehicle?
Can a bullet spin in place after being fired onto the surface of a frozen lake?
|167||8||"Dodge a Bullet"||June 1, 2011||182|
Can a person dodge a bullet after it has been fired at him?
Can a fall into water inflict the same injuries as one onto pavement from the same height?
|168||9||"Fixing a Flat"||June 8, 2011||183|
What can a driver use to replace a flat tire without a spare?
Can a fishing reel catch fire with a fast enough fish on the line?
|SP15||Special 1||"Planes, Trains, and Automobiles"||June 15, 2011||184|
|The MythBusters discuss 12 favorite myths involving forms of transportation.
Note: This is a special episode.
|169||10||"Let There Be Light"||June 22, 2011||185|
Can mirrors be used to reflect sunlight and illuminate a tomb, as depicted in The Mummy?
Can a runaway car be safely stopped if another driver pulls in front and slows down?
|170||11||"Paper Armor"||June 29, 2011||186|
Can a swimmer increase his chances of surviving an underwater explosion by floating at the surface?
Did armies in ancient China use paper armor that was as effective as steel?
|171||12||"Bikes and Bazookas"||September 28, 2011||187|
Is a motorcycle more environmentally friendly than a car?
Can a bullet take out an RPG?
|172||13||"Newton's Crane Cradle"||October 5, 2011||188|
Will a super-sized Newton's cradle work?
Can the weight of a bird be enough to tip a teetering car off of a cliff?
|173||14||"Walk a Straight Line"||October 12, 2011||189|
Is it impossible for humans to walk in a straight line without a point of reference?
Will binary explosives explode in the case of a fender bender?
|174||15||"Duct Tape Plane"||October 19, 2011||190|
Can excavators row a barge, take you wakeboarding, or do acrobatics?
Can you patch the fuselage of a plane with duct tape?
|175||16||"Flying Guillotine"||October 26, 2011||191|
Can C4 be used as a cooking fuel?
Can you make a throwing weapon that could decapitate an opponent and carry the head back to the thrower?
|176||17||"Drain Disaster"||November 2, 2011||192|
Will an explosion in a sewer launch a manhole cover as seen in many Hollywood films?
Can truck bedliner withstand a car crash, a dog bite, and an explosion?
|SP16||Special 2||"Location, Location, Location"||November 9, 2011||193|
|The MythBusters discuss 12 favorite locations they have used for testing myths in the past.
Note: This is a special episode.
|SP17||Special 3||"Wet and Wild"||November 16, 2011||194|
|The MythBusters count down their 12 favorite water-based myths from prior episodes.
Note: This is a special episode.
|177||18||"Wheel of Mythfortune"||November 23, 2011||195|
Is it possible to re-inflate a flat tire and re-seat it on its rim by spraying in engine starting fluid and igniting it?
How effective are various handgun firing stances?
If a live grenade lands near a person, can he avoid shrapnel injuries by lying flat on the ground?
Do people presented with the Monty Hall problem tend to stick with their first choice?
Would people presented with the Monty Hall problem be more likely to win if they changed their decision?
|178||19||"Toilet Bomb"||November 30, 2011||196|
If a pressure-triggered bomb is cooled with liquid nitrogen, can its detonation be delayed long enough for a person to seek protection, as seen in Lethal Weapon 2?
Can airplanes save fuel by flying in a V-formation like a flock of birds?
Episode 160 – "Mission Impossible Mask"
- Original air date: April 6, 2011
Mission Impossible Face Off
|With a realistic mask and good impersonation skills, a person can fool a security guard into believing he is someone else. Based on scenes in the Mission: Impossible TV series and films.||Plausible||Adam and Jamie visited a special-effects shop to have rubber full-head masks made of themselves, based on photos and measurements of their faces. They then worked with professional acting coach Terry McGovern to learn how to impersonate each other's voices and body language.
The pair then donned each other's mask and clothing, with padding as needed to match each other's body shape. They directed six volunteers (who were fans of the show) to approach them, starting from 90 feet and ending at 5 feet, while using an unrelated task to mask the nature of the test. Three worked with "Jamie", three with "Adam", and all six quickly realized the deception as soon as the imposter spoke. Six more volunteers then took part in a test in which the disguised hosts did not speak; none of them suspected anything until they came face-to-face with the imposter.
Grant and Kari, both thoroughly familiar with Jamie's appearance and behavior, took part in a similar test, with subtle changes in "Jamie"'s wardrobe as distractions. Neither of them identified him as a fake until they were 5 feet away, though Kari expressed some doubt at 70 feet. Adam and Jamie classified the myth as plausible, depending on the circumstances under which the deception is carried out.
|It is possible to knock a dropped gun out of reach by hitting it with bullets fired from another one.||Confirmed||The Build Team chose three surfaces for testing - a dirt road, asphalt pavement, and a tile floor - and used a typical 9 mm pistol as a target. Grant tested the friction forces on each surface and found that the dirt and asphalt required 1.5 pounds of force to move the pistol, while the tile required 0.5 pounds of force. Using a Glock 9 mm pistol, the team was able to move the target gun a total of 16 feet in all three cases (six shots for dirt, four for asphalt, three for tile). They attributed this result to the effective transfer of kinetic energy from the bullet to the target.|
|It is possible to start a playground merry-go-round spinning by shooting it. Inspired by a scene in the film Shoot 'Em Up.||Busted||The Build Team built a merry-go-round, placed it on a firing range, and found that 8.6 pounds of force were needed to get it to start turning. They then fired weapons at the outer portion of the handrails: a Glock 9 mm pistol, a Smith & Wesson .44 Magnum, and a .45 pistol. None of their shots turned the merry-go-round more than a fraction of an inch, but they did punch holes through the rails. A 12-gauge shotgun loaded with deer slugs gave the same result.
The team added steel plates to the rails in an attempt to stop the bullets and force them to transfer their energy to the merry-go-round. After making this change, they tried another deer slug and managed to turn it by 1.5 inches; a shot from an Armalite AR-50 rifle turned it 8 inches and knocked one of the plates off. At this point, the team declared the myth busted and set about replicating the results, with Tory redesigning the merry-go-round's bearing system to reduce friction and Kari and Grant attaching more bullet-stopping plates. They were finally able to keep the device turning with steady streams of 12-gauge deer slugs and .416 Barrett rifle fire.
Episode 161 – "Blue Ice"
- Original air date: April 13, 2011
|A room filled with flammable gas can be made to explode by placing a magazine in a kitchen toaster and turning it on. Based on a scene in the film The Bourne Supremacy.||Busted||Adam and Jamie began by placing magazines of varying thicknesses in toasters and timing how long they took to catch fire. The thinnest ones, similar to common newsprint or comic books, took roughly 2 minutes to burn rather than the 20–30 seconds observed in the film. Small-scale tests with mixtures of methane and air indicated that a methane level as low as 6% (the bottom end of its flammability range) could trigger a noticeable explosion.
For full-scale testing, they built a replica of Jason Bourne’s apartment, as seen in the film, and set up the toaster, magazine, and gas supply. Their first attempt, which exactly replicated the scene from the film, had no effect whatsoever, with the magazine completely burning away well before the gas concentration could reach explosive levels. On their second trial, they placed a firestarter log in the middle of the room and allowed the gas to gradually build up to explosive levels. The mixture did eventually ignite, creating a small explosion that partly blew out a wall and gave way to an intense fire that destroyed most of the furniture. Adam and Jamie declared the myth busted and made one last attempt, using enough methane to achieve a 9% concentration (the center of the flammability range) and a set of fans and diffuser hoses to mix the gas and air thoroughly, before lighting the gas mix with a specialized device. This time, they were able to get one wall to blow out and set the apartment on fire.
|If the contents of an airplane toilet are jettisoned mid-flight, they can freeze into a solid mass capable of inflicting severe injury upon hitting the ground.||Confirmed||Kari spoke with an airplane technician and learned that although a pilot cannot dump the toilet mid-flight, the contents can leak out if certain valves and seals fail. The Build Team put together a section of a plane fuselage with a toilet outlet designed to suffer a slow or sudden leak as needed.
Grant and Tory visited a NASA research center and placed the rig in a tunnel designed to replicate the high wind speeds and cold temperatures typical of airplane cruising altitudes. When the toilet was dumped all at once, the liquid quickly atomized in the wind, leaving only a thin film to freeze on the fuselage. However, a slow leak allowed the ice to build up into a large mass that did not break loose until the rig "descended" to 12,000 feet.
To determine the ability of such a chunk to survive a fall to earth, Kari and a skydiver flew up to that altitude, threw a 35-pound ice block out of the plane, and jumped out after it as Grant and Tory tracked it from the ground. The block did not suffer any significant melting or damage during the fall or impact, prompting the team to declare the myth confirmed but unlikely due to the number of safeguards that would need to fail simultaneously to achieve the result.
Episode 162 – "Running on Water"
- Original air date: April 20, 2011
Running on Water
|It is possible to run across the surface of a body of water through a combination of footwear and running technique. Inspired by a viral video.||Busted||Adam and Jamie found a lake similar to the one shown in the video and laid a strip of turf to its edge in order to ensure good traction. Wearing the same type of water-repellent shoes, they each made several runs but wound up in the water each time. They brought in Olympic sprinter Wallace Spearmon, thinking that increased speed would help, but he also failed.
After studying film footage of a basilisk running on water, Adam and Jamie decided to build separate footwear rigs to duplicate its leg movements. They called in Jessica Fortunato, a trained acrobat and gymnast, and had her try the rigs: Adam’s with hinged foot platforms and a long tail, and Jamie’s with concave foot cups and an outrigger frame held in front. She was unable to stay above water, whether unaided or using either of the rigs.
At this point, Adam and Jamie declared the myth busted and built a submersible bridge to replicate the results. After camouflaging it and setting up the camera at a particular angle, both were able to run across the surface until they went off the end of the bridge.
What Is Bombproof?
The Build Team investigated the ability of everyday objects to reduce the likelihood of injury or death from an explosion. They began by detonating a 3-pound (1.4 kg) charge of C-4, with rupture disks at various distances set to burst at 13 psi (90 kPa) (injury) and 75 psi (517 kPa) (instant death). Distances of 10 and 20 ft (3.0 and 6.1 m) were found to be the thresholds of the death and injury zones, respectively, due to the blast shock wave.
For each object tested, they placed it at 10 and 20 feet, with rupture disks and a foam-cutout figure (to gauge shrapnel injuries) protected by it. They evaluated the question of surviving the shock wave by taking cover behind…
|…a wooden table.||Confirmed||The tables were placed on their side, facing the blast, and the disks and figures were set behind them. Both figures were broken in the blast. The 10 ft (3.0 m) table was destroyed, but the disks did not burst. At 20 ft (6.1 m), the table was heavily damaged; the "injury" disk did not burst, but did buckle noticeably. The team noted that shrapnel from the splintered table might cause injury or death independently of the shock wave.|
|…a car.||Confirmed||The cars were placed to present one side toward the blast, with the disks and figures behind the front end. No injury was noted at 20 feet, while only the "injury" disk burst at 10 feet.|
|…a metal dumpster.||Confirmed||The disks and figures were placed inside the dumpsters. The team observed the same results as for the car and noted that the side toward the blast showed some deformation.|
|…a cinderblock wall.||Confirmed||Since the team only had enough time and materials to build one wall, they moved the blast site as needed to achieve the 10- and 20-foot distances. The 20-foot test was performed first; the wall stood, and the disk deformed but did not burst. After the wall was repaired, the 10-foot blast collapsed it and crushed the figure. However, the disks remained intact.|
Episode 163 – "Bubble Trouble"
- Original air date: April 27, 2011
|It is impossible to swim in bubbling water.||Plausible||In a small-scale test, Adam built a crude hydrometer, weighted to float at a certain height, and placed it in a fishtank full of water. The device did not sink when he bubbled air in, but he and Jamie thought that this was the result of upward water currents. Jamie then built a larger bubbler to place in the 10,000-gallon tank used in the "Whirlpool of Death" myth, and Adam donned a wetsuit and carried enough weights to leave only his head above the surface. When the bubbler was turned on, the upwelling pushed him to one side, where he sank in a downward current.
In order to eliminate these wall effects, Adam and Jamie built a 4-by-16-foot bubbler to place at the bottom of a swimming pool. After they added weights to keep the rig from floating up, Adam tried to swim across the pool and back through the bubbles. The trip proved difficult at 25% power and impossible at 100%. Adam and Jamie classified the myth as plausible, but for a different reason from the one expected – water currents holding the swimmer at the surface, rather than a density reduction causing him/her to sink.
|If a stick of dynamite is attached to an arrow and shot into a tree, it will split the tree down the middle when it explodes.||Busted||To simulate a real tree, the Build Team dug a hole in the ground and stood a 20-foot, 6,000-pound pine log in it. They set up a remote-controlled rig to fire an arrow fitted with a binary explosive charge equivalent to a stick of dynamite. Tests with a single and double charge failed to damage the log, so they stuck an arrow into the wood by hand and attached six charges. This attempt also did not result in a split; Grant commented that the placement of the explosive outside the tree surface prevented its force from being channeled into the wood.
Declaring the myth busted, the team did some small-scale tests with different explosives and placement techniques. A TNT charge drilled into the trunk shredded it at the blast point, while an ANFO charge laid in grooves cut along the wood grain caused some degree of splitting.
In one last full-scale test, the team chose a 100-foot Ponderosa pine and fitted it with 25 pounds of ANFO, laid in grooves cut near the core. The resulting blast tore the tree into hundreds of pieces.
Episode 164 – "Torpedo Tastic"
- Original air date: May 4, 2011
|13th-century Syrians designed a torpedo-like weapon that could skim over the surface of a body of water and explode on impact.||Plausible||Examining historical records, Adam and Jamie found that the weapon had a pear-shaped upper hull, with rear stabilizing fins and a propellant equivalent to 20 lb (9 kg) of black powder. They each built prototypes with different lower hulls and tested them for accuracy, with Jamie’s flat-bottom craft traveling straighter than Adam’s V-hull design.
Adam and Jamie built several full-scale torpedoes, took them to a lake, and set up a target ship 800 ft (244 m) from shore. Two accuracy tests – first with the full propellant charge (as a rocket motor), then with a reduced one – caused the torpedo to go airborne and miss the target completely. For the next two trials on payload delivery, they used a tether to guide the torpedo, but were unable to score a hit even after they moved the ship to within 200 ft (61 m) of shore. Finally, they removed the tether and reduced the rocket power further, allowing them to hit the ship and set it on fire with the incendiary payload. They classified the myth as plausible, since they could find no record of the device being used in combat.
|If a truck filled with bottled wine catches fire, the heat can cause the corks to blow out and fly 100 ft (30 m), sounding similar to a machine gun. Based on published accounts of such an accident.||Busted||
After visiting a local winery to find out about what could make a wine bottle blow its cork, the Build Team decided to investigate wine/bottle type and temperature in the shop. They placed each bottle on a burner and measured the distance each cork flew. Chilling the bottles increased the distance due to the higher pressure rise caused by the larger temperature change. The best performers of the still and sparkling wines were Riesling (30 ft (9 m)) and champagne (50 ft (15 m)), respectively, with the difference due to the high pressure under which champagne is bottled.
For a full-scale test, the team loaded a semi trailer with 1,000 bottles of champagne and some Riesling, then set fire to it. All three agreed that the sound of the exploding corks resembled machine guns or firecrackers; however, no corks flew farther than 50 feet. Based on this result, the team declared the myth busted, then set up a Gatling gun-like rig to rotate the bottles over a burner and launch their corks straight ahead. Grant, dressed in a fire suit, stood in front of the rig and took several direct hits.
Episode 165 – "Blow Your Own Sail"
- Original air date: May 11, 2011
Adam and Jamie compared movie sound effects to their real-world counterparts by recording samples of both. They looked into the realistic nature of…
|…a punch.||Busted||They first hung up a pig carcass and took turns punching it, but had to pull their punches in order to keep from injuring their hands. The results did not resemble the movie sound effects, so Adam attached a ballistic-gelatin fist to a baseball bat and swung it at the carcass full force, with similar results. Sound designer Steve Boeddeker explained that the movie punch was heavily manipulated and built up from various sounds to build drama.|
|…a reloading gun. (Not in the version of the episode aired in the US.)||Confirmed||Adam cocked a .45 caliber pistol and its sound closely matched its movie counterpart. Steve explained that this is because modern sound engineers can record sounds of actual guns and save those sounds in a digital library for future use. This can apply to any gun regardless of size and caliber.|
|…a rattlesnake’s rattle.||Confirmed||Owen Maercks, a snake expert, brought in a rattlesnake and coaxed it to shake its tail, producing a sound very close to its movie counterpart.|
|…a gun fitted with a suppressor.||Plausible||Adam and Jamie visited a shooting range and fired .45 caliber and 9mm pistols, both with and without suppressors. With the help of sound expert Roger Schwenke, they found that the suppressor reduced the sound level considerably, from 161 to 126 decibels for the .45. The movie sound effect was not a perfect match, but did have enough similarity to result in a "plausible" verdict.|
|…an explosion.||Busted||In the opening sequence of the myth, Jamie blew up a car rigged with primer cord and 2 US gal (8 l) gallons of gasoline. He, Adam, and Roger observed that the movie explosion had a longer duration and covered a wider range of frequencies. A second attempt, using 2.2 lb (1 kg) of C-4, gave a more substantial blast but still did not match the movie.|
Blow Your Own Sail
|A sailboat stranded in calm water can move forward by using an onboard fan to blow air into the sail.||Confirmed||The Build Team set up small-scale tests in the shop, using a wheeled cart on a tabletop, and Kari found that a forward-facing model airplane propeller could generate enough thrust to push it backward. However, after Grant fitted a sail onto the cart, the prop could not move it due to the equal and opposite forces acting on the ship and the blown air.
With smaller sails and higher prop speeds, the cart rolled backward once air began to spill around the sail edges. The combination of a large sail and an elevated fan did result in the cart moving forward; Grant theorized that this was caused by the sail "reflecting" a portion of the prop’s thrust backward (in fact, the air hitting the sail flows outwards, towards the top, bottom and sides, but, due to the sail's curvature, the flow is angled slightly backwards). A larger-scale test, with a small jet engine mounted on a skateboard and using a fire-resistant sail, gave the same effect.
Finally, the team set up a full-scale test on a lake, using a swamp boat with a 40-horsepower fan. The boat reached a speed of 20 mph (32 km/h) with the fan facing backward and the sail not in use. After the fan was reversed and the sail was hoisted, the boat traveled forward at 3 mph (5 km/h) once the team fine-tuned the fan’s aim.
All tests used a basic square sail design.
Episode 166 – "Spy Car 2"
- Original air date: May 18, 2011
Spy Car: The Revenge
A twist on "Spy Car Escape", with the focus on offensive rather than defensive methods to disable an enemy car. Adam and Jamie tested the use of…
|...wheel-mounted spikes.||Confirmed||Jamie built replicas of wheel spikes from the films Goldfinger (a small blade wheel on a long central shaft) and The Green Hornet (a crown-like assembly on the hubcap). He and Adam drove side-by-side at 40 mph (64 km/h), with Jamie using a set of devices on his passenger-side tires to damage Adam’s driver’s side as much as possible over 500 yd (457 m). Both film designs shredded at least one of Adam’s tires and left deep gouges in the bodywork.
Jamie then built a new device from a short pipe the same diameter as the hubcap, with the free end sharpened into blades. This design tore up Adam’s bodywork, popped one tire, and pulled the other one off its rim, leaving the car sitting on its chassis.
|…a hood-mounted machine gun.||Confirmed||Adam built two mounts to hold a fully automatic paintball gun on the hood of a car – one for a fixed position, and another that could be aimed with a joystick and camera/monitor system. He and Jamie did a control run, with Adam driving and shooting at a target vehicle with a handheld semiautomatic gun, but only scored one glancing hit.
Next, Adam mounted a gun and a full ammunition hopper on his hood and chased Jamie, who drove a target car with the rear windshield removed. He was able to riddle the rear end and hit Jamie's head and seat a few times with the fixed mount; in the aimed-mount test, he got so many hits in such a short time that Jamie called an early end to the run.
Spinning Ice Bullets
|A bullet fired into the surface of a frozen lake can spin like a top on impact. Inspired by a viral video.||Confirmed||The testing for this myth began during the summer, with Tory building a rig to hold a pistol at any desired angle and Kari checking the video to work out the geometry of the shot. The Build Team then laid down blocks of ice and dry ice on a rifle range to simulate the frozen lake and tried several shots with a Glock 9 mm pistol. Direct hits left bullets embedded in the ice, while shallow ricochets left the team unable to find the bullets at all.
After re-checking their own footage, the team heard a sound that might have been a spinning bullet. Once winter came, they visited Caples Lake in the Sierra Nevada and dug out a target area on its frozen surface for further work. Testing gave no results until they aimed at the center of their target site, allowing for a backward ricochet instead of a forward one. The team found the bullets from these last tests to be spinning in place on their side, leading them to declare the myth confirmed.
Episode 167 – "Dodge a Bullet"
- Original air date: June 1, 2011
Dodge a Bullet
|It is possible to dodge a bullet, if the shooter is far enough away from his intended target. This myth was chosen for testing by viewers.||Busted||Adam and Jamie called in U.S. Army sniper Dave Liwanag for some preliminary tests to measure the time it took for a bullet to reach its target. After some failed attempts, they obtained travel times of 231, 597 and 1791 ms for 200, 500 and 1,200 yd (183, 457 and 1,097 m) respectively. Next, the pair did some workshop tests to find how quickly they could dodge a shot, using a camera flash to simulate the muzzle flash. Jamie proved slightly faster, dodging in 490 ms; based on that result, he and Adam calculated that the shooter would have to be at least 400 yd (366 m) away.
They then watched Dave fire standard blank cartridges from various distances and found that they could not see his muzzle flash at all past 200 yd (183 m). When he switched to Hollywood-style blanks with much heavier gunpowder loads, they could easily see the flash out to 1,200 yd (1,097 m). Finally, they set up a blank-firing rifle at 200 yards, wired to a timer and paintball gun; when one man pulled the trigger, a paintball would be fired directly at the other’s chest after 231 ms. Neither was able to dodge any shots until the rifle was moved to 500 yd (457 m) (600 ms delay) and loaded with Hollywood blanks. Adam and Jamie declared the myth busted, since an actual sniper would take precautions to ensure that the target would not see the muzzle flash (including a flash suppressor).
Water = Pavement
|A person who falls from a great enough height into water will sustain the same injuries as if he had landed on pavement.||Busted||The Build Team fitted Buster with accelerometers, hauled him up with a construction crane, and dropped him feet first onto pavement and water. Drops from 25 ft (8 m) gave g-force measurements of 60 g on pavement, but less than 25 g on water (the lower threshold that the instruments could measure). At 75 ft (23 m), the team obtained a reading of 29 g for water, but over 500 g for pavement (the upper measuring limit). To investigate the effect of body surface area on impact forces, the team did more drops with Buster in a belly-flop position. Pavement and water drops from 25 feet gave 286 g and 115 g, respectively, while 50 ft (15 m) drops maxed out the instrument (pavement) and registered 220 g (water).
For a final test at terminal velocity, roughly 120 miles per hour, Tory threw two pig carcasses out of a helicopter at 600 ft (183 m), after which they were X-rayed to determine injuries. The pavement drop resulted in 17 fractures, a shattered pelvis, and a decapitation, while the water drop yielded seven fractures and a broken neck. Since no water landing produced the same level of impact force or injury as a fall from the same height onto pavement, the team declared the myth busted.
Episode 168 – "Fixing a Flat"
- Original air date: June 8, 2011
Fixin’ a Flat
Adam and Jamie tested three impromptu remedies for a flat tire in the wilderness, without a spare being available. At a 2-mile off-road hazard course, they set up a typical highway vehicle and cut into one tire. They tried to drive using…
|…straw stuffing in the tire.||Plausible||They removed the wheel, stuffed the tire with straw, and re-mounted it. The car performed adequately through one lap, but showed signs of losing its stuffing after the run. Adam and Jamie decided that straw could work as a short-term fix.|
|…a makeshift sled under the tire.||Busted||They forced a branch underneath the flat tire, running front to back, and lashed it to the wheel. Although Jamie was able to drive the car forward with a push from Adam, the branch came off at a speed bump.|
|…a replacement wheel carved from a log.||Confirmed||They cut a log section to size, made it as round as possible, and mounted it in place of the wheel. It performed well through one full lap, and Adam and Jamie decided that it was the best solution so far.|
Next they investigated ways to remedy a flat tire in an urban setting, setting up a road obstacle course. They tested…
|…driving on the rim. (Jamie)||Plausible||After revving the engine until the wooden wheel broke, Jamie mounted a bare rim in its place. Despite the trouble with balance and poor acceleration, he was able to navigate through every obstacle in the course.|
|…a manhole cover. (Adam)||Plausible||Adam found a cover that was the same size as the tire, mounted it, and was able to drive the course successfully.|
|…driving with all four wheels modified. (Both)||Rims perform better||Adam and Jamie raced side-by-side on identical courses. Jamie’s bare rims gave him better traction than Adam’s manhole covers and allowed him to win the race at a steady speed.|
|A fish on the end of a line can swim so fast that the line’s reel will catch fire due to friction. Inspired by a viral video.||Busted||After spending a day trying to catch fish without success, the Build Team returned to the shop to test line/reel combinations. They began with a lever-drag reel and measured the maximum temperature achieved with the line running out at 20 miles per hour. Four lines were tested, with braided Spectra giving the highest result of 158 °F; it was used for all further testing. Next, the team switched to older-design star-drag reels, one of which reached 245 °F and showed large amounts of smoke.
For full-scale testing, the team outfitted a go-kart to match the mass and top swimming speed of a typical sailfish and hooked their line to it from a star-drag reel. Kari drove it at 68 mph, while Tory applied drag and Grant measured the temperature. The first two runs gave a peak of 530 °F and smoked without any fire, even after Tory used larger amounts of flammable lubricant on the second run.
Declaring the myth busted, the team brought in a professional motorcycle racer and his sidecar rig to achieve higher speeds. Tory changed the lubricant out for even more flammable engine starting fluid. Runs at 140 and 180 mph gave temperatures over 700 °F, with the second of these causing the line to melt without burning. Finally, Tory set the reel on fire by exposing it to an open flame.
Episode SP15 – "Planes, Trains, and Automobiles"
- Original air date: June 15, 2011
A countdown of the cast's 12 favorite myths involving forms of transportation.
|#||Name (in countdown)||Myth featured||Comments|
|12||Plane Crazy||Talked Into Landing||"Breaking" a NASA flight simulator|
|11||Out of Control||Instant Convertible||Trouble with setting up crashes (towing, remote control, etc.)|
|10||Fuel for Thought||Don't Drive Angry||Grant and Tory reliving the stress that Kari put them through to test this myth|
|9||2 Wheels…Are Better Than 4||Motor Bike Flip, Tablecloth Chaos||Adam and Jamie commenting on two motorcycle-related myths|
|8||RC Freaks||Car Skip||Trouble with remote control systems on cars|
|7||Stunt Driving||Drafting for Money, Knight Rider Ramp, Cyclists Drafting a Big Rig||Specialized driving by the cast. Includes a previously unaired segment from 2007 in which Tory drafts behind a truck while riding a bicycle.|
|6||Controversy Corner||Airplane on a Conveyor Belt||The myth that has generated the most debate among viewers|
|5||Putting It on the Line||Both versions of "Peeing on the Third Rail", from 2003 and 2004||Adam urinating on camera to help build the original dummy for this myth, then later on an electric fence|
|4||Pimp My Ride||Reverse Engineering||Extreme modifications to cars for testing myths|
|3||Need for Speed||Sonic Boom Sound-Off||Adam vomiting as he breaks the sound barrier during a flight with the Blue Angels|
|2||Taxi!||Supersize Jet Taxi||Testing complicated first by insurance company objections, then by pavement peeling off the runway|
|1||Carmageddon||Adam: Donated Car Explosion
Jamie: Ramp Jump
Kari: Fixing a Car with Duct Tape
Grant: Snowplow Split
Tory: Elevator Car Cut
|Each cast member's favorite myth involving automotive destruction|
Episode 169 – "Let There Be Light"
- Original air date: June 22, 2011
Let There Be Light
|A system of mirrors can be used to reflect sunlight into an underground area and illuminate it sufficiently to allow safe passage. Based on a scene in the film The Mummy.||Plausible (but ridiculous)||Adam and Jamie built an obstacle course in the shop and used it to determine the minimum light level needed to see by. To match the movie scene, Adam went from a brightly lit area into total darkness, then to the course; his goal was to reach the other end without knocking over any glasses. He succeeded at a level of 0.39 lux, while the pair estimated that the movie scene had used roughly 200 lux.
They set up six mirrors to bounce light back and forth down the length of the shop, using a spotlight as the source. Polished metal mirrors gave 1.13 lux, but caused the beam to spread out after only a few reflections. When modern glass mirrors were used instead, the light level registered at 0.49 lux and the beam stayed focused longer. Adam and Jamie realized that the light needed to scatter in order to illuminate the room.
At Treasure Island in San Francisco Bay, they set up a hangar area as a full-scale tomb and brought in six glass mirrors and a 7,000-watt spotlight. After adjusting the mirrors, they measured a light level of 2.3 lux and could easily see their way around. Once the sky cleared, they reflected sunlight into the tomb and found a peak of 2.5 lux until the sun’s position shifted, throwing off the mirrors’ alignment. Finally, Jamie stood in the light beam, which scattered in the air when it hit his white shirt and gave 8.6 lux. The need to keep adjusting the mirrors, and the unlikely prospect of finding several of them ready to use after thousands of years underground, led them to declare the myth "plausible but ridiculous."
|It is possible to safely stop an out-of-control car by pulling in front and slowing down.||Confirmed||After taking lessons in stunt driving, the Build Team tested a scenario in which the runaway car would be coasting without the driver’s foot on the accelerator. As Kari drove without using either the steering wheel or the brake/gas pedals, Grant pulled in front and slowed down until he made contact with her bumper. He was able to stop her at 35 and 55 mph (56 and 89 km/h). They then tested the possibility of a stuck accelerator and no steering. Kari drove at 75 mph (121 km/h) with her foot on the gas pedal; Tory stopped her with some difficulty, just short of hitting a fence. They declared the myth confirmed at this point.
Next, Grant and Tory tried to sandwich Kari’s car from either side and managed to stop her, though they began to spin out somewhat. The two men then built car-stoppers: side paddles to attach to two rescue cars’ front bumpers and maneuver to block in the runaway (Grant), and a hood-mounted spear to hook the rescue and runaway cars together so the rescuer can slow them both down from behind (Tory). Both rigs worked without endangering either Kari or her rescuer(s).
Episode 170 – "Paper Armor"
- Original air date: June 29, 2011
Depth Charge Disaster
|A person can increase his chances of surviving an underwater explosion by floating on his back at the surface.||Confirmed||Adam and Jamie built a 15 ft (5 m) deep cylindrical tank, fitted it with pressure sensors at four depths, and filled it with water. Firing an underwater .357 Magnum revolver loaded with blanks to generate shock waves, they found that the sensor nearest the surface gave the lowest readings.
For full-scale tests, they used a mast fitted with sensors at depths of 6 in (15 cm) and 2.5, 15 and 25 ft (0.8, 4.6 and 7.6 m), with a fifth at the surface. The first two depths were intended to represent the depth at which a swimmer's torso would be submerged if he were floating or treading water. A 10 lb (5 kg) charge of TNT was set off at a depth of 15 ft (5 m) and a set distance from the sensors (30, 70 or 150 ft (9, 21 or 46 m)).
Using a pressure threshold of 87 psi (corresponding to a 50% mortality rate from the shock wave), Adam and Jamie found that a floating person would survive at 30 ft (9 m), while greater depths led to pressures likely to cause death. At longer distances, the readings fell below 87 psi. Based on the 30-foot results, they declared the myth confirmed. Jamie attributed these results to the fact that much of the energy from the underwater pressure wave dissipated into transverse waves when it reached the surface.
|Ancient Chinese armies used armor made from paper that could give the same protection as steel armor.||Plausible||Kari spoke with antique armor expert Greg Martin, who explained that paper armor was in use as early as 600 BC and was built up from layers that may have been impregnated with resin or shellac. The Build Team tested several formulations for penetration resistance and found that a thick layer of folded paper, with no resin, gave the best results.
Using an armor sample (1⁄2 in (13 mm) paper vs. 1⁄32 in (1 mm) steel) placed over a block of clay, they tested resistance to blunt force, swords, and arrows. The paper did as well as steel in the sword and arrow tests, failing only the blunt-force test, so the team built a full suit of paper armor to match against a period-accurate steel counterpart.
Each team member ran one of three timed courses in both armor types to evaluate speed, endurance, and agility; paper outperformed steel in all three. Finally, they attacked the suits with arrows, swords, and two firearms — an 18th-century flintlock pistol and a 19th-century .45 revolver. The armor types resisted every attack except the .45, leading the team to classify the myth as plausible. They pointed out, though, that the paper armor could quickly begin to disintegrate if it got wet or took repeated blows (which happened during the full-scale tests).
Episode 171 – "Bikes and Bazookas"
- Original air date: September 28, 2011
Starting this episode, the theme music is "rearranged and performed" by The Dandy Warhols.
Bike vs. Car
|Riding a motorcycle contributes less to air pollution than driving a car for the same time period.||Busted||Adam and Jamie chose one car and one motorcycle apiece from the 1980s, 1990s, and 2000s. Adam drove each car and Jamie each motorcycle for 30 minutes in the city and on the freeway, using sensors to measure the tailpipe emissions. In every case, the motorcycles gave higher fuel efficiency and lower carbon dioxide emissions than the corresponding cars. However, the cars performed better in terms of emissions of hydrocarbons, nitrogen oxides, and carbon monoxide.
At this point, Adam and Jamie decided to try to improve a motorcycle's aerodynamic performance so that it would use less fuel and give lower emissions. They built a teardrop-shaped shell to cover the entire vehicle, with a tubular steel frame and heat-shrink plastic sheeting. Jamie then drove simulated city and highway courses at Naval Air Station Alameda on a modern motorcycle, with the shell on and off. The shell gave the best fuel efficiency and lowest CO2 emissions, but did not perform better than the cars on the other three pollutants. They classified the myth as busted, and Jamie attributed this result to the fact that car pollution technology has advanced faster than that for motorcycles.
|If a handgun bullet is fired at an airborne rocket-propelled grenade, the RPG will explode in midair and kill its shooter, leaving the handgun shooter unharmed. Based on a scene in the film Red.||Busted||The Build Team visited the New Mexico Institute of Mining and Technology to learn about the details of RPG use and have a place to do their testing safely and legally. Detonation of a live round showed a jet of molten metal burning through the target, which raised serious questions about a person in front being able to survive.
With help from Institute personnel, they built a rig to launch an RPG directly toward a remote-controlled gun of the same caliber as that used in the film (a Smith & Wesson Model 460 revolver). After a failed first test, they were able to hit the RPG with a bullet and see the former explode in midair. Separate shots of the two weapons on an 80-foot test range, the same distance as the film scene, led them to calculate that the bullet and RPG would collide 16 feet in front of the RPG shooter. However, the particular rounds used for these tests had fuze systems that would not arm until they had flown roughly 60 feet.
The team set up two dummies 80 feet apart, outfitted with pork-belly abdomens and foil burst gauges to evaluate injuries. Assuming that the film RPG might have had a defective fuze, the team set up a target 16 feet in front of the RPG dummy, backed the launcher up to ensure a detonation, and fired. Both dummies survived without injury, though molten metal flew through the air just to each side of the handgun dummy and his survival was chalked up to sheer dumb luck. The need for a bad fuze, the forward direction of the explosion, and the fact that the intended target survived only through luck led the team to call the myth busted.
Episode 172 – "Newton's Crane Cradle"
- Original air date: October 5, 2011
Wrecking Ball Baloney
|It is possible to construct a working Newton's cradle using wrecking balls. Inspired by a viral video.||Busted||Adam and Jamie decided to start with small-scale testing and work their way up to find any flaws. To determine the efficiency of energy transfer from ball to ball, Adam pulled the ball at one end out to a certain distance and measured the length of the swing at the other end. Their first three models – an off-the-shelf desktop toy, and two built with 2.5 and 6 in (64 and 152 mm) solid steel bearings – gave 98%, 97%, and 94% efficiency, respectively. Jamie noted that the energy loss increased at the larger scales, but did not depend directly on size or mass.
To simulate miniature wrecking balls, Adam and Jamie filled five 6 in (152 mm) hollow steel balls with plaster that had properties similar to concrete. This version gave only 63% efficiency, but Jamie suggested putting a steel plate through the center of each ball to reduce energy transfer into the concrete. They then built five 2,000 lb (907 kg) balls by cutting hollow naval buoys in half, sandwiching a steel plate in each, and filling the space with rebar and concrete. When the rig was assembled at Mare Island Naval Shipyard and hung from an I-beam frame, it gave very poor efficiency and quickly stopped swinging, even after each ball was hung from two cables rather than one as shown in the video. Adam and Jamie declared the myth busted, noting the increased potential for energy losses at large scales, and later learned that the original video had indeed, been faked confirming their initial thoughts.
|A car balanced on the edge of a cliff can topple over if a bird perches on the front end.||Busted||The Build Team set up a shipping container as a cliff, with a dirt escape ramp built up against its edge so that the test car would roll down safely if it went over the edge. Grant and Tory, in the car, eased it forward to find the balance point; after several tries and the use of a forklift and straps on the rear bumper, they were able to get the car balanced.
With these two still in the car, birds were brought in and allowed to perch on the hood. Two pigeons (1 lb (454 g) each), two hawks (2.5 lb (1.1 kg) each), and an eagle owl (7 lb (3 kg)) were tried separately; none were able to do more than wobble the car slightly. Grant commented that although a weight near the front bumper gave a large amount of leverage, the car itself had enough weight to counteract the effect.
The team located a model helicopter and modified it to weigh 20 lb (9.1 kg), the same as a California condor (the largest flying bird in North America). When this too failed to tip the car, the team classified the myth as busted and set out to find out how much weight it would take. The car only tipped after Kari put 80 raw, 1.5 lb (0.7 kg) game hens onto the hood and Tory added a raw, 20 lb (9 kg) remote-controlled turkey for a total of 140 lb (64 kg).
This myth was revisited in Bird Balance Limo in 2012.
Episode 173 – "Walk a Straight Line"
- Original air date: October 12, 2011
|It is impossible for a blindfolded person to travel in a straight line.||Confirmed||Adam and Jamie decided to test the myth by walking, swimming, and driving. They used blackout goggles, noise-blocking headphones or earplugs, and portable GPS devices to track their movements. The walking test, set in an open field, required each man to try to walk toward a target 3,000 ft (914 m) away; both ended up far off course and/or at the edge of the field. They then tried to swim directly across a lake and drive a golf cart straight down an abandoned airfield runway, also without success, and declared the myth confirmed.
For a real-world situation, they then decided to investigate the ability of a person to navigate a straight course if lost in the woods. With no landmarks or destination in view, they tried to follow separate headings for 30 minutes and succeeded by using the sun’s position to stay on track. However, with buckets on their heads to simulate reduced visibility at night or in a snowstorm, Adam did poorly while Jamie stayed on track by carefully pacing around obstacles, drawing on his wilderness survival experience. Finally, they attached themselves to opposite ends of a long ladder with hip belts, thinking that each could feel the other’s veering and correct it, but failed the open-field walking test again.
Binary Fender Bender
|A load of mixed binary explosive (Tannerite) in a car trunk can detonate if the car is rear-ended.||Busted||At the bomb range, the Build Team set up jars of the two unmixed components, as well as an 8 oz (227 g) jar of the mixed Tannerite. Tory fired at them with a high-powered sniper rifle; only the mixed jar exploded when hit. Doubling the sample size gave a larger blast, and shooting one jar in a stack of five created a chain reaction that set them all off. To simulate a freeway rear-end collision, the team half-buried a target car with its nose down and the protruding trunk packed with 50 lb (23 kg) of mixed Tannerite. They dropped a second car on it from 150 ft (46 m), nose down, but the load did not explode on impact.
Declaring the myth busted at this point, the team traveled to the New Mexico Institute of Mining and Technology to use the on-site rocket sled apparatus. After setting off a 100 lb (45 kg) load of explosive to determine the appearance of the actual blast, they set a target car on the track, with the same size load, and fitted a pickup truck’s front end onto the sled. Enough rocket motors were attached to accelerate the sled to a top speed of 300 mph (483 km/h), but the impact only disintegrated the target car without triggering a detonation. A cloud of undetonated Tannerite was visibly sprayed in all directions by the force of the impact.
The tests suggest that Tannerite is difficult to detonate unintentionally, the myth being that it was detonated unintentionally. Other binary explosives, however, are not necessarily as safe.
Episode 174 – "Duct Tape Plane"
- Original air date: October 19, 2011
Adam and Jamie investigated three viral videos involving excavators. They tested the machine’s ability to…
|…row a barge on open water, using the excavator’s bucket as an oar.||Confirmed||They set up two excavators (rather than one as shown in the video) on a barge and had a tugboat tow them 0.5 mi (805 m) into San Francisco Bay. Their goal was to keep control of the barge’s direction and maintain forward momentum toward the shore. The first attempt failed due to strong currents pushing them into the bay; when they started closer to shore, they were able to row to the dock.|
|…spin in place and allow a person tethered to the bucket to wakeboard.||Confirmed (Pure Unadulterated Fun)||Jamie operated an excavator set in the middle of a pond while Adam rode the board. After a few adjustments of bucket height and spin speed, Adam successfully stayed upright. He enjoyed himself so much that he created a special category for this myth: "Pure Unadulterated Fun."|
|…load itself into the back of a cargo truck.||Confirmed||Adam met with an expert machinery operator to work out the details of attempting this feat. By carefully manipulating the boom, bucket, and tracks, he was able to lean the front end against the tailgate, then turn the cabin around and lift the rear end off the ground so he could drive into the cargo bed.|
Duct Tape Plane
|If a bear rips a hole in a grounded airplane’s fuselage, the pilot can patch the hole with duct tape so that the plane can fly away safely. Based on news accounts of an Alaskan pilot who repaired his plane in this manner.||Confirmed||The Build Team obtained a plane with a fuselage similar to the one on the plane in the actual incident. After they assembled it and watched its owner take a test flight to confirm its airworthiness, Kari used a pair of clawed gloves to shred the relevant portions of the fuselage. As she and Tory started covering the damage with duct tape, Grant worked on the control surfaces needed to keep the plane stable in flight. The plane’s owner then taxied on a runway and took off, spending over 30 minutes in the air with no observable deterioration of the tape despite the wind and temperature.|
|It is possible to construct a workable airplane fuselage skin using only duct tape.||Confirmed||Using the same donated plane, the team ripped off every piece of the fuselage and covered the frame with tape. The removed material weighed the same as 5 rolls, but the team ended up using 17 rolls to build a layered skin intended to resist vibrations and rippling. When the plane was set up in front of a wind machine set to 50 mph (80 km/h), Grant and Tory saw no damage in the tape. A test pilot then taxied on the runway and took the plane for a short flight at an altitude of 5 ft (1.5 m), reporting no problems in wind gusts over the plane’s original rating of 12 mph (19 km/h). Grant commented afterward that calmer winds might have allowed the pilot to take a longer flight at a higher altitude.|
Episode 175 – "Flying Guillotine"
- Original air date: October 26, 2011
|C-4 plastic explosive is stable enough to burn without exploding and can be used to cook food, but a mechanical shock to the burning material will set it off.||Confirmed (1st half) / Busted (2nd half)||At the bomb range, Adam and Jamie set up a piece of C-4 and ignited it remotely. The material burned for 2 minutes without exploding and registered temperatures of 1,000 °F (538 °C). Setting up a stove from two bricks and an oven rack, they were able to warm a military MRE ration somewhat. For comparison purposes, they ignited 1 oz (28 g) samples of C-4 and three other fuels (hexamethylenetetramine, 1,3,5-trioxane, and chafing-dish fuel) under pots of water and measured the peak temperature and time to burn out. HMTA achieved a higher temperature than the other three, but the C-4 and the two remaining fuels reached broadly the same temperature, and the speed with which the C-4 burned led Adam to decide that it could be used as a workable cooking fuel.
For sensitivity tests, they rigged a full, 7 lb (3.2 kg) cooking pot to fall on a piece of burning C-4 from 3 ft (91 cm), then set up a robotic leg in a combat boot to stomp on it. Neither of these trials produced an explosion, so they dropped a 90 lb (41 kg) anvil on the material, without success. Shooting at the C-4 with different .308 rifle cartridges – standard, tracer, incendiary – failed to trigger an explosion as well. Finally, Adam and Jamie set up a thermite charge to drip molten material at 4,500 °F (2,482 °C) onto the C-4, thinking that extreme heat might make it sensitive enough to detonate. This test failed as well, and Jamie noted that C-4 was formulated to be stable unless set off by a blasting cap. He and Adam judged the first half of the myth as confirmed, but the second half as busted. Jamie added that stomping on burning C-4 is still a bad idea, but more because it burns at a very high temperature and tends to stick to the bottom of shoes, rather than any risk of it exploding.
The Flying Guillotine
|The 18th-century Chinese designed a throwing weapon that could decapitate an opponent and carry the head back to the thrower. Inspired by appearances of such weapons in martial-arts movies.||Plausible||The Build Team set three criteria for success: ease of throwing, enough power to cleanly remove a head, and ability to contain it while being retrieved. After each member designed a different prototype, the three devices were tested against a pig neck with Buster’s head mounted on it. All three could be thrown to land on the head from 10 ft (3.0 m). Kari's guillotine-inspired design did succeed in removing the head from the body, but more through brute pulling force, as it sliced only a little way into the actual spine. Grant's complex, spring-loaded design, despite the team's fears about its safety and the lengthy arming time, actually ended up being the least successful of the three, slicing only a little way into the neck and causing no damage whatsoever to the pig's spine. Tory’s – a spinning ring on a cable, with a salad bowl to hold the head – came the closest to a full decapitation, slicing about halfway through the spine, and the team decided to build on his design.
After a few refinements to his design, he was able to take the head off and have it retained within the device. Kari and Grant set up a combat situation, involving one moving enemy dummy and a second that could pop up from behind a screen. Tory hit the pop-up enemy with a glancing blow and knocked it down, but could not land his device on the moving one. Based on these results, the team decided that the flying guillotine was plausible as an assassination weapon, but not in combat.
Episode 176 – "Drain Disaster"
- Original air date: November 2, 2011
|A methane explosion in a sewer can launch a manhole cover into the air without destroying it.||Confirmed||For small-scale testing, Adam and Jamie built a miniature sewer pipe fitted with a full-length viewing window and three manholes. They pumped in enough methane to reach a 9% concentration in air, the center of its flammability range, and used a spark to set off the mixture. A test with both ends of the pipe open gave only a small flash of flame; when the ends were closed, all three covers flew off. The addition of metal debris to the pipe, simulating junk that might collect in a real sewer, launched the covers even higher due to a faster, larger flame front moving around all the obstructions.
They next built a 40 ft (12 m) sewer in a trench using concrete culvert sections, installed three manholes, and placed rolls of chain-link fencing in it to simulate debris. After burying it under 3 ft (91 cm) of dirt, they pumped in the methane and set it off. The resulting explosion threw the covers 150 ft (46 m) skyward and slightly shifted the dirt over the sewer. High-speed footage showed fire coming from only one manhole, indicating that a deflagration had taken place rather than a detonation. Judging the myth confirmed at this point, Adam and Jamie noted that a detonation might have sent the covers even higher.
The Build Team tested viewers’ claims concerning the toughness of spray-on truck bedliner resin. They investigated its ability to withstand…
|…a car crash.||Busted||The team sprayed one half of a car with bedliner, leaving the other exposed, and carried out crash tests. In 6 mph (10 km/h) front- and rear-end collisions with a concrete barricade, the treated side showed much less damage than the untreated one. However, when Tory rammed each side with a second car at 25 mph (40 km/h), the team found the same serious damage on both sides.|
|…a dog bite.||Confirmed||Grant built a robot modeled after a German shepherd’s skull, calibrated to match its bite force. The team sprayed one sleeve on each of four jackets – denim, leather, canvas, quilted coat – and tested the robot on all eight sleeves. It easily bit through the untreated sleeves and damaged the dummy arms underneath, but could not penetrate the treated ones. Tory chose the quilted coat for testing against a police dog; after it had been completely sprayed, he put it on and suffered no injuries when the dog tried to bite him.|
|…an explosion.||Confirmed||The team built wood-frame and cinderblock walls, one treated and one untreated of each type, and placed Buster behind each before setting off a C-4 charge 5 ft (1.5 m) in front. The untreated walls were badly damaged and threw large amounts of debris on Buster, while the treated ones showed no damage and protected him.|
Episode SP16 – "Location, Location, Location"
- Original air date: November 9, 2011
A countdown of the cast's 12 favourite locations for testing myths, with an emphasis on one myth that was tested at the location.
|No.||Name (in countdown)||Myth featured||Comments|
|12||Home Sweet Home||No specific myth||M5 Industries, the MythBusters' home base, is examined. It includes details on the origins of the M5 name, the opening and closing of M6, the shop initially used by the Build Team in 2004 (roughly corresponding to the period between the formation of the Build Team and Scottie Chapman's departure), as well as M7, the Build Team's home since 2005 (roughly corresponding to Grant joining the Build Team).|
|11||Don't "Quarry" About It!||Cement Mix-Up
Knock Your Socks Off
|The quarries used by the MythBusters are examined. Adam and Jamie detail the last-minute addition of the concrete truck explosion. The Build Team also details the damage control after the pressure wave from a quarry explosion caused collateral damage in nearby Esparto, California and why they have not been at that quarry since.|
|10||African Adventure||Elephants Scared of Mice||The myths tested in South Africa are featured. Though initially they were filming for Supersize Shark, due to inclement conditions they decided to film an impromptu myth to better make use of their time there.|
|9||Runaway Runway||Tree Cannon||The runway at Alameda is featured. The location is frequented so much (at the time of filming, most recently, the previous day for the finale of Fixing a Flat) that Grant recalls that some fans mistakenly believed that M5 was based in Alameda. Jamie notes that the hand-carved cannonball that was shot out of the tree cannon was never found, even after 7 years.|
|8||Zombie Town||Elevator of Death||Abandoned areas are featured in this entry, with a special focus on the abandoned residential neighborhood nicknamed by the crew as "Zombie Town." The effort into cleaning up the site before "Elevator of Death" could be tested is detailed.|
|7||Cool for School||No specific myth||University and government research facilities used by the MythBusters are detailed, with a specific emphasis on the rocket sled testing facilities in New Mexico Tech. Jamie also talks about the people who run these facilities and the insight they provide to the myths being tested.|
|6||Thunderdome||No specific myth||The local power-generating stations used in myths that require high-voltage electricity, nicknamed the "Thunderdome" by Adam, is featured.|
|5||Just Hanging Out!||Seven Folds||The hangars at Moffat Field are featured. The Build Team recalls an owl dung that had to be removed from the paper between testing days as the paper was being laid out.|
|4||Presidential Perks||President's Challenge||The MythBusters' three visits to the White House is featured, and featured is Jamie's speechlessness at Barack Obama's introduction speech congratulating the role of MythBusters in children's science education. The 500 students chosen in that test were all from the high school where Jamie's wife has been a longtime science teacher.|
|3||It's Snow Joke||Spinning Ice Bullets||Myths tested in wintry conditions are tested. The Build Team talks about having to brave the weather in the Sierra Nevada mountains.|
|2||Deserted Desert||JATO Rocket
|The Mojave Desert is featured. Kari, then an intern at M5, details on her role in the pilot episode, having driven through the night to catch up to Adam and Jamie. Adam and Jamie detail on having an M5 truck stuck in the mud on two occasions during "Confederate Rocket". Jamie also notes that portions of the desert are cleared for types of testing that the MythBusters have yet to fully make use of.|
|1||Home Away From Home||Sawdust Cannon||Nicknamed "home away from home", the bomb range is explored. Jamie talks about how some of the myths involving explosives would otherwise be illegal if the bomb range was not available. The Build Team details their experience with the non-dairy creamer cannon and how much more dangerous than it was originally anticipated. The challenges of working in rainy conditions, when the ground is wet and muddy. The episode ends with a montage of explosions from myths tested on the range.|
Episode SP17 – "Wet and Wild"
- Original air date: November 16, 2011
A countdown of the cast’s 12 favorite myths involving water.
|No.||Name (in countdown)||Myth(s) featured||Comments|
|12||Wettest & Wildest||Waterslide Wipeout||Building the massive, steep launch ramp for this myth, and Adam’s experience sliding down it|
|11||Water Bomb||Water Safe
Black Powder Shark
|Two of the cast’s favorite myths involving submerged explosives|
|10||Out in the Cold||Swimming in Syrup||Challenges of staying warm during the swimming time trials, filmed during winter in San Francisco|
|9||Dive! Dive! Dive!||The Squeeze||The Build Team’s unsavory experience with the pork dummy Tory built to help test this myth|
|8||MythBusters on Ice||Blue Ice||The Build Team reflects on their visit to a NASA low-temperature wind tunnel|
|7||Under Pressure||Exploding Water Heater
Steam Powered Machine Gun
|Dealing with the energy and hazards of steam in myth testing|
|6||Pool Cruelty||Bulletproof Water||Mayhem caused by firing high-powered weapons into a swimming pool|
|5||Water Torture||Chinese Water Torture||Unpleasant experiences of Adam and Kari during this round of testing (Adam urinating on himself, Kari enduring the torture until a paramedic stopped the test and removed her)|
|4||The Life Aquatic||Octopus Egg Pregnancy||Adam’s discovery that the texture of his skin was unusually pleasant to octopi|
|3||Boatmageddon||Bifurcated Boat||The Build Team’s repeated difficulties in setting up and performing their tests on land|
|2||Hidden Depths||Adam: Eye Gouge
Jamie: Fish Flap
|Memorable shark myths, as chosen by each cast member (the Build Team’s choice was unanimous)|
|1||Rock the Boat||Building a Pykrete Boat||The inspiration for building a speedboat out of newspaper-based "Super Pykrete", stemming from the cast’s second trip to Alaska|
Episode 177 – "Wheel of Mythfortune"
- Original air date: November 23, 2011
Adam, Jamie, and the Build Team test four myths chosen at random from viewer submissions.
Pick a Door
Adam and Jamie tested the myths that when people were presented with the Monty Hall problem, they would...
|...tend to stick with their first choice.||Confirmed||After they built a game-show mockup set at a local theater, Adam acted as a game-show host and had 20 volunteers play a game of "Pick a Door." Once a player chose a door, Jamie opened an empty one and Adam offered the player a chance to switch; all 20 stayed with their original pick, many of them believing that they had a 50-50 chance to win at this point.|
|...be more likely to win if they changed their decision.||Confirmed||They built a small-scale simulator to do 50 trials each, with Adam always switching his choice and Jamie never switching. Adam won far more often than Jamie did, and Jamie explained the reason: because the player has a 2/3 probability of choosing a losing door at first, switching turns the odds in their favor.|
|If a live grenade lands near a person, he can avoid shrapnel injuries by lying flat on the ground.||Busted||The Build Team set up a grenade and placed rupture discs at 1 ft (0.3 m) intervals around it, from 1 ft (0.3 m) to 10 ft (3.0 m), in order to find the lethal radius of the blast wave. All discs at 5 ft (1.5 m) and closer burst, so the team set up plywood panels and a plastic roof just beyond this distance to gauge the shrapnel spread. Tests with both a mid-20th century "pineapple" grenade and a modern "baseball" device showed injuries at all heights from ground to roof level. Although the team judged the myth as busted, they found relatively few hits in the area corresponding to a person lying on the ground, indicating that lying down might reduce the chance of shrapnel injuries.|
Adam and Jamie examined the effectiveness of handgun firing stances often used in movies to find out if they allow a handgun user to shoot faster and more accurately than the standard two-handed stance. They set up targets at 15 ft (4.6 m) and each took a turn firing 8 rounds from a .45 caliber pistol (16 rounds for the two-gun trials), evaluating their performance on a combination of speed and accuracy. The techniques they tested were...
|...the Weaver technique (two-handed).||Confirmed||This was the control technique because it is known to be effective and is actually used by law enforcement personnel. The final score for the control was 7.3.|
|...from the hip.||Busted||The final score for this technique was 2.8, far lower than the control. The main reason was that neither Adam nor Jamie had any way of knowing where they were aiming because they could not look down the sights on the pistol. They also had no ability to aim in the same place every time.|
|...from the shoulder, with a straight arm.||Plausible||The final score for this technique was 7.1, which was very close to the control. It was effective because, like the Weaver technique, Adam and Jamie were able to use the sights on the gun to aim well.|
|...from the shoulder with the gun turned sideways, gangster-style.||Busted||The final score for this technique was 1.3, the lowest score of all the techniques tested. Like shooting from the hip, Adam and Jamie were not able to aim using the sights.|
|...using two guns pointed straight ahead, fired alternately.||Busted||For both of the two-gun techniques, Adam and Jamie used twice as many bullets, which still gave an accurate comparison because the doubled amount of time counteracted the doubled scoring opportunities. The final score for this technique was 4.1, lower than the control. Adam and Jamie found it difficult to repeatedly switch looking down each gun between shots.|
|...using two guns with the arms crossed.||Busted||The final score for this technique was 4.6, which was also lower than the control. Like the previous technique, it was found difficult to manage two guns at the same time. Notably, however, the score for this technique was slightly higher than the previous technique.|
There was one more technique tested in the 2012 season that proved more effective than the control.
|It is possible to re-inflate a flat tire and re-seat it on its rim by spraying in engine starting fluid and igniting it.||Busted||Kari sprayed the fluid into a deflated car tire and ignited it, but the tire did not inflate or re-seat. In a second trial, Tory stepped on the tire to mix the air and fluid; when ignited, the tire quickly re-seated and inflated to the point of bursting. Upon cooling, though, the gases inside the tire contracted and formed a vacuum inside the tire, making it useless. The Build Team obtained the same result with a truck tire, prompting them to declare the myth busted. Tory noted that although the starting fluid can be used to re-seat the tire, a source of compressed air is needed to inflate it.|
Episode 178 – "Toilet Bomb"
- Original air date: November 30, 2011
|If a pressure-triggered bomb is cooled with liquid nitrogen, its detonation will be delayed long enough for a person to dive into a bathtub and cover himself with a bomb blanket, surviving the explosion. Based on a scene in the film Lethal Weapon 2.||Confirmed||Adam and Jamie decided to test three facets of the myth: time to get off the toilet and into the tub, effectiveness of LN2 in delaying the trigger, and ability of the blanket and tub to shield its occupants. After building a replica of the movie bathroom and incorporating all details of the scene, including a prolonged time spent sitting on the toilet, Adam was able to pull Jamie into the tub and under the blanket in 1.95 seconds.
On the bomb range, they set up a charge of C-4 and a high-speed camera to measure the delay between triggering and detonation. A control run with an ambient-temperature bomb gave a delay of 3.3 milliseconds, while pouring the LN2 directly onto the charge increased it to 15 milliseconds. When the LN2 was poured over both the charge and the battery powering the trigger, the bomb would not detonate at all until the entire rig had warmed up to ambient temperature, 15 minutes later. Adam and Jamie commented that the technique was actually more effective in real life than in the film; the characters could have simply stood up and walked out of the bathroom.
To test the third part of the myth, they built a bathroom set with a heavy cast-iron tub as seen in the film, put Buster in the tub under a blanket, and fitted the tub with sensors to measure the pressure inside and outside. When a 1 kg charge of C-4 was set off under the toilet, the entire set was destroyed except for the tub. The peak pressure outside the tub was a lethal 180 psi (1.2 MPa), while the inside sensor recorded 8 psi (55 kPa), meaning that a person would survive but have some chance of suffering hearing damage. Adam and Jamie declared the myth confirmed.
|Airplanes can save fuel and money by flying in V-formation, similar to a flock of birds.||Confirmed||While visiting a bird sanctuary, Kari and Tory learned the reason for the birds’ V-formation: air vortices from the leading birds’ wings allow the trailing ones to flap less often and less vigorously. Kari then built some model airplanes, which she and Grant took for testing in a NASA water chamber. With three planes in a V, they saw vortices at the lead plane’s wingtips that persisted for a large distance behind it.
At Tracy Municipal Airport, the Build Team met with a 9-member acrobatic flight club to test out flying formations: V, wingtip to wingtip, single file, and a control run with no formation. A tight V reduced fuel consumption by 3-5% compared to the control, while the other two formations either gave no reduction or increased the fuel usage. The team declared the myth confirmed at this point, but noted that the close formation could pose a danger to the pilots. A second run, with the planes spaced farther apart, gave a fuel savings for only Tory due to the difficulty of staying in the lead planes’ vortices. Nevertheless, the team commented that even a small fuel savings could lead to a sizable financial advantage at a large scale.
- "New Episodes of Discovery Channel's "MythBusters" Return April 6 at 9PM ET/PT" (Press release). Discovery Communications. March 16, 2011. Retrieved March 19, 2011.
- "MythBusters 2011 Episode Guide". Discovery Channel. Discovery Communications. Retrieved January 24, 2016.
- "MythBusters Complete Episode List". Discovery Channel. Discovery Communications. Retrieved January 24, 2016.
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