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Title: Helium Football (01 Feb 2006)
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| Episode credited cast: | |||
| Jamie Hyneman | ... | Self - Host | |
| Adam Savage | ... | Self - Host | |
| Tory Belleci | ... | Self - Host | |
| Grant Imahara | ... | Self - Host | |
| Kari Byron | ... | Self - Host | |
| Rest of cast listed alphabetically: | |||
 |
John Balano | ... | Self |
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Ray Guy | ... | Self (archive footage) |
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Robert Lee | ... | Narrator (voice) |
|
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Deborah Nolan | ... | Self |
|
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Alan Normandy | ... | Self (as Sgt. Alan Normandy) |
|
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Tim Sonnenberg | ... | Self |
Jamie and Adam examine whether a helium filled football will travel further than a normal football. Meanwhile the Mythbusters team examines whether it is possible for a person to catch a bullet with their teeth.
There are some omissions in the arguments and the tests carried out to verify the myth. Perhaps the most important is that a ball would be hit with a constant impact rather than with a constant velocity. A lighter ball would then fly faster.
The ball weighs about 400 grams of which the air inside weighs about 5 grams. If Helium is used instead, it weighs under a gram. In either case, most of the weight comes from the skin itself.
The ball is subjected to gravity and air drag. The drag force itself is independent of the gas inside but the deceleration would be a tiny bit more with Helium.
Therefore, a He-filled ball would have a larger initial velocity and a larger deceleration from drag. Both these changes are tiny compared to the baseline.
Verdict: No perceptible change in the distance can be expected!