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#1
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Jumping Jack Flash, it's a gas gas gas...
http://www.straightdope.com/columns/...ecome-airborne
-- Greg Moore Ask me about lily, an RPI based CMC. |
#2
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Jumping Jack Flash, it's a gas gas gas...
Greg D. Moore (Strider) wrote:
http://www.straightdope.com/columns/...ecome-airborne I was born in an digestive hurricane, and I howled out my mass in a driving rain, But it's all right now, in fact it's only a gas. ;-) |
#3
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Jumping Jack Flash, it's a gas gas gas...
"Greg D. Moore (Strider)" skrev i
meddelelsen m... http://www.straightdope.com/columns/...ecome-airborne There was one approach to the problem that the straightdope people neglected: variable gravity. In a microgravity environment, how much acceleration could you get? This would also give you the maximum gravity - on an asteroid, or near the axis of a spinning orbital structure - where lift-off could be achieved. The basic fart generates 0.2 Newtons? Getting the subject off the launch pad in a one g environment requires 800 N? Then reducing gravity by a factor of 4000 should do the trick. In microgravity you could achieve an acceleration of two or three millimeters per square second, while the fart lasted, and provided you could make the thrust vector pass through your center of gravity. If an O'Neill type space habitat is 4000 meters in radius, you can't stray more than a meter from the axis before you become too heavy - except at these minute forces and accelerations, air circulation from breezes or fans would likely dominate the fart rocket. And if that is how you want to propel yourself, air circulation will be needed anyway to maintain a civilized atmosphere, as it were. Even for those who are used to the countryside when pig manure is being spread on the fields. But if people begin to live in free-fall structures like O'Neill type habitats, perhaps this concept could form the basis for a fraternity beer-drinking competition. The best human rocket hopes to win the admiration of the girls and can't understand why they derisively call him "cabbage-head" before floating off to snog boys with clean underwear. A Danish slang expression meaning "get lost" - "fis af" - translates into English literally as "fart off". A new use for old slang then. To take this subject somewhat beyond the silly, how well could you move in a microgravity environment, away from solid objects such as walls, by swimming in the air? Or by blowing hard? Corvus. |
#4
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Jumping Jack Flash, it's a gas gas gas...
On 5/20/2010 2:01 PM, Raven wrote:
To take this subject somewhat beyond the silly, how well could you move in a microgravity environment, away from solid objects such as walls, by swimming in the air? Or by blowing hard? I think they actually tried the swimming concept on Skylab, though I don't know with how much success. Pat |
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