The death ray or death beam was a theoretical particle beam or electromagnetic weapon of the 1920s through the 1930s that was claimed to have been invented independently by Guglielmo Marconi, Nikola Tesla, Edwin R. Scott, Harry Grindell Matthews, and Graichen, as well as others. In 1957, the National Inventors Council was still issuing lists of needed military inventions that included a death ray.
While based in fiction, research into energy-based weapons inspired by past speculation has contributed to real-life weapons in use by modern militaries sometimes called a sort of 'death ray', such as the United States Navy and its 'Laser Weapon System' (LaWS) deployed in mid-2014. These such armaments are technically known as 'directed-energy weapons'.
Edwin R. Scott, an inventor from San Francisco, claimed he was the first to develop a death ray that would destroy human life and bring down planes at a distance. He was born in Detroit, and he claimed he worked for nine years as a student and protégé of Charles P. Steinmetz. Harry Grindell-Matthews tried to sell what he reported to be a death ray to the British Air Ministry in 1924. He was never able to show a functioning model or demonstrate it to the military.
Nikola Tesla claimed to have invented a "death beam" which he called teleforce in the 1930s and continued the claims up until his death. Tesla explained that "this invention of mine does not contemplate the use of any so-called " death rays." Rays are not applicable because they cannot be produced in requisite quantities and diminish rapidly in intensity with distance. All the energy of New York City (approximately two million horsepower) transformed into rays and projected twenty miles, could not kill a human being, because, according to a well known law of physics, it would disperse to such an extent as to be ineffectual. My apparatus projects particles which may be relatively large or of microscopic dimensions, enabling us to convey to a small area at a great distance trillions of times more energy than is possible with rays of any kind. Many thousands of horsepower can thus be transmitted by a stream thinner than a hair, so that nothing can resist."
Tesla proposed that a nation could "destroy anything approaching within 200 miles... [and] will provide a wall of power" in order to " make any country, large or small, impregnable against armies, airplanes, and other means for attack".
During World War II, the Germans had at least two projects, and the Japanese one, to create so called death rays. One German project led by a man called Schiebold concerned a particle accelerator with a steerable bundle of beryllium rods running through the vertical axis. The other was developed by Dr Rolf Wideroe and is referred to in his biography. The machine developed by Wideroe was in the Dresden Plasma Physics laboratory in February 1945 when the city was bombed. Wideroe led a team in March 1945 to remove the device from the ruined laboratory and deliver it to General Patton's 3rd Army at Burggrub where it was taken into US custody on 14 April 1945.
In 2013 in the United States, two men from Upstate New York were arrested after being charged with attempting to build a death ray. The men allegedly sought to use the death ray to kill Muslims and President Barack Obama.
In science fiction
Although the concept of a death ray was never put into action, it fueled science fiction stories and led to the science fiction concept of the hand held raygun used by fictional heroes such as Flash Gordon. In Alfred Noyes' 1940 novel The Last Man (US title: No Other Man), a death ray developed by a German scientist named Mardok is unleashed in a global war and almost wipes out the human race. Along with George Lucas' science fiction story "Star Wars".
In popular culture
- The earliest reference to a death ray in literature is in the P.G. Wodehouse short story, 'The Rummy Affair of Old Biffy', in which Bertie Wooster describes Sir Roderick Glossop as having "eyes that go through you like a couple of Death Rays.”
- The idea that a death ray was possibly invented by Nikola Tesla and may have caused the Tunguska event was explored in an episode of Dark Matters: Twisted But True in a story entitled "Radio Waves of Death".
- In the book Goliath by Scott Westerfeld, the Tunguska event was caused by Goliath, Nikola Tesla's death ray-like weapon.
- This theory is also brought up in one of Spider Robinson's Callahan's books.
- Tesla's Death Ray (renamed 'Peace Ray') is a prominent fixture of nations' defense in Larry Correia's Grimnoir book series. (In the Grimnoir world, Tesla invented an even more devastating energy weapon that caused the Tunguska event.)
- In the game "Command and Conquer: Red Alert 2" the player can build a weapon called a "Tesla Coil." This weapon is vaguely similar to the "Death ray."
- Directed-energy weapon
- Surgical strike
- Sonic weaponry
- Science fiction weapon
- Strategic Defense Initiative
- Rachele Mussolini, Mussolini privato, Milano, 1979, Rusconi Editore.
- To, Wireless (June 4, 1928). "Finds a 'Death Ray' Fatal to Humans. German Scientist Says it Inflames and Destroys Cells, Hence Aids in Disease. Expects to Split Atom. Dr. Graichen Has Device to Make Blind See With Light Sent Through the Skull.". New York Times. Retrieved 2007-07-21. "Berlin, June 3, 1928. The discovery of a new 'death ray,' capable of destroying, though not intended to destroy, human life, has just been announced by Dr. Graichen, a young physicist and engineer employed as an experimenter by the Siemens Halske Electric Company."
- "The 'Death Ray' Rivals". New York Times. May 29, 1924. Retrieved 2007-07-21. "The inventors of a 'death ray' multiply every day. To H. Grindell-Matthews and Professor T.F. Wall have been added two other Englishmen, Prior and Raffe, and Grammachikoff, a Russian. Herr Wulle, 'chief of the militarists' in the Reichstag, has informed that body that the Government has a device that will bring down airplanes, stop tank engines, and 'spread a curtain of death.'"
- "Council Seeking Death Ray and Greaseless Bearing for Armed Forces". Associated Press in the New York Times. November 3, 1957. Retrieved 2007-07-21. "Washington, DC, Nov. 2, 1957 (AP) Anyone who has a death ray lying around the house, a hole digger that disposes of the dirt as it goes along, or a greaseless ball bearing that can be used in temperatures ranging"
- "Denies British Invented 'Death Ray'. E.R. Scott Asserts He and Other Americans Preceded Grindell-Matthews.". New York Times. September 5, 1924. "Washington, DC, September 4, 1924 Edwin R. Scott an inventor of San Francisco, today challenged the assertion of Mr. Grindell-Matthews, who sailed for London on the Homeric last week, that the latter was the first to develop a 'death-ray' that would destroy human life and bring down planes at a distance."
- "Death Stroke". Time (magazine). August 10, 1925. Retrieved 2007-07-21. "Utmost secrecy always shrouds the structural details of new munitions of war. This one, announced last week by its inventor, Dr. Edwin R. Scott, is called the 'death stroke' or 'canned lightning.' The Navy Department, which has been in touch with Dr. Scott's researches, hinted that the ultraviolet ray was involved, but Dr. Scott stated specifically: 'There is no ray or beam about it.'"
- "Nikola Tesla Dies. Prolific Inventor. Alternating Power Current's Developer Found Dead in Hotel Suite Here. Claimed a 'Death Beam'. He Insisted the Invention Could Annihilate an Army of 1,000,000 at Once". New York Times. January 8, 1943. Retrieved 2007-07-21.
- "Beam to Kill Army at 200 Miles, Tesla's Claim On 78th Birthday". New York Herald Tribune. July 11, 1934. Retrieved 2007-07-21.
- "Tesla, At 78, Bares New 'Death-Beam'. Invention Powerful Enough to Destroy 10,000 Planes 250 Miles Away, He Asserts. Defensive Weapon Only. Scientist, in Interview, Tells of Apparatus That He Says Will Kill Without Trace". New York Times. Retrieved 2012-09-04. "Nikola Tesla, father of modern methods of generation and distribution of electrical energy, who was 78 years old yesterday, announced a new invention, or inventions, which he said, he considered the most important of the 700 made by him so far."
- "A Machine to End War". PBS: Tesla - Master of Lightning.
- "Inventor Hides Secret of Death Ray". Popular Science. February 1940. Retrieved 2008-12-11.
- "Welder at Work". Time magazine. August 10, 1936. Retrieved 2008-12-11. "Two years ago President Albert Burns of the Inventors' Congress declared that he had seen pigeons, rabbits, dogs and cats killed at a distance by a "death ray" which dissolved red blood corpuscles. The inventor, said President Burns, was Dr. Antonio Longoria"
- "Gadgeteers Gather". Time magazine. January 21, 1935. Retrieved 2008-12-11. "Albert G. Burns of Oakland, Calif, was re-elected president of the Congress. It was Mr. Burns who last year revealed that a Clevelander named Antonio Longoria had invented a death-ray which killed rabbits, dogs & cats instantly. President Burns said that Inventor Longoria would withhold his secret until invasion threatened the U. S."
- "U.S. charges two New Yorkers with building 'death ray' aimed at killing 'enemies of Israel'".
- Holland, Charles. "Alfred Noyes, The Last Man", St. Dunstan's Red and White, St. Dunstan's University.
- Defense Update article on M-THEL
- Microwave weapons: Wasted energy (Nature)
- High Power Microwaves - Strategic and Operational Implications for Warfare (Eileen M. Walling, Colonel, USAF)
- HAARP - High Frequency Active Auroral Research Program