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This myth was tested legitimately in the season's "Duct Tape Island" with a bamboo bow drill and duct tape string. Confirmed Earlier Mythbusters perte de poids using modern weaponry and smokeless powder were unproductive.
Tory then modified an old musket and replaced the bullet with a piece of cloth. When the gun was fired, the black powder which burns more energetically than smokeless ignited the cloth, which then ignited the tinder into which it was shot.
While the can was not able to light tinder that was held by hand, the rig easily lit when the tinder was secured on a makeshift rig that kept it from moving.
A clip from a survivalist TV show with Ron Hood also showed this myth to be confirmed. Episode 46 — "Archimedes Death Ray"[ edit ] Original air date: January 25, This was the third episode where Myths from previous episodes were revisited, as well as the third episode to focus on just one experiment.
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This episode, referred to as the MythBusters Mailbag Special: The Great Archimedes Burn-Off from within the episode itself, saw a retest of the Ancient Death Ray myth after fans of the series contested their original decision. To this end, the MythBusters commissioned a contest, challenging viewers to prove the myth plausible. For the smaller-scale version, two finalists, the team of Kari Lukes and Jess Nelsonboth from UCSBand the team of Brenden Millstein Harvard and Stephen Marsh Lawrence Berkeley National Laboratory were chosen to compete against the MythBusters' own entry in the retest which was disqualified when it was found that the MythBusters had not followed the contest rules they had set out themselves.
Only one entrant Mike Bushroe, a NASA space scientist entered a full-scale contest; however, the winning entry was destroyed en route for the retest.
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The MythBusters also invited a team from MITled by Professor David Wallace, who had independently Mythbusters perte de poids that a ship could be lit from afar using an array of mirrors, to retest the myth with Archimedean-era technology instead of the modern technology used in their own experiment. Myth statement Status Notes An array of bronze mirrors can set a wooden ship Mythbusters perte de poids fire. In addition, the ship only ignited when it was stationary and positioned at less than half the distance described in the myth.
The myth was plausible at a smaller scale, however. Flaming arrows were fired from a ballista at the ship, but to little effect. The most effective and plausible with Archimedes-era technology method of lighting the ship ablaze was through the use of Molotov cocktails.
While it was shown extensively that it is, in fact, plausible that an array of mirrors or a parabolic mirror could set objects on fire, the MythBusters stood by their original Busted verdict because of many factors: Syracusewhere the myth was supposed to take place, faced east, thus could not take advantage of the more intense midday rays, instead relying on less powerful morning rays.
The death ray would not work during cloudy weather.
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Enemy ships were likely to be moving targets, thus the mirrors would need to be constantly refocused. The historical records: no mention was made of the use of fire during the Battle of Syracuse until years after the event, and no mention of mirrors until years after the event.
The impossibly large numbers of mirrors and personnel needed to light a boat with any reasonable speed The availability of other weapons that were much more effective: flaming arrows and Molotov cocktail were more reliable at setting an enemy ship ablaze, and were more effective over longer distances. The MythBusters also addressed fans' criticisms that suggested they try to light the ships' sails instead of the body of the ship, and showed the sails diffused the light due to their composition and the wind blowing against them, thus could not be as easily set on fire compared to the body of the ship.
The myth would be re-visited in in the President's Challenge only to be re-busted.
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Episode 47 — "Helium Football"[ edit ] Original air date: February 1, Helium Football[ edit ] Adam and Jamie took on a myth Mythbusters perte de poids around football circles, made more prevalent during the time of prolific punter Ray Guywhose kicks carried so much distance and had so much hangtime, some had suspected the footballs he used were filled with helium.
Busted Under the same amount of impulse under the same atmospheric conditions, balls filled with helium showed no significant difference from balls filled with compressed air. Under the same impulse, both types of balls had the same initial velocity ; since the helium-filled balls have a lower mass than the air-filled ones, the helium-filled balls have less inertia in flight: in fact, they may perform worse than air-filled balls over larger distances. Catching a Bullet in Your Teeth[ edit ] The Build Team took on the bullet catch magic trick, and see whether it is possible to do the trick for real.