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**tipoketpu** · 12-28-2007, 08:47 PM

Originally posted by Adrian Hon
Whether or not any air leaks in (and I don't think it does), we live in an atmosphere, and since the fart gas is lighter-than-air, your weight goes down. Now, if you were on the Moon and you farted, your weight would go down (assuming you had some sort of fart gas valve on your spacesuit or whatever).

I think that word does not mean what you think it means.

Weight = Pull of gravity on a mass = proportional to mass when gravity is constant

Density = Mass over volume

Density is not relevant to weight. As stated above, unless the fart is replaced by a greater mass of air - which it, generally, is not - you are expelling mass/weight.

12-28-2007, 08:47 PM	#28
tipoketpu Join Date Nov 2005 Posts 435 Senior Member	Originally posted by Adrian Hon Whether or not any air leaks in (and I don't think it does), we live in an atmosphere, and since the fart gas is lighter-than-air, your weight goes down. Now, if you were on the Moon and you farted, your weight would go down (assuming you had some sort of fart gas valve on your spacesuit or whatever). I think that word does not mean what you think it means. Weight = Pull of gravity on a mass = proportional to mass when gravity is constant Density = Mass over volume Density is not relevant to weight. As stated above, unless the fart is replaced by a greater mass of air - which it, generally, is not - you are expelling mass/weight.
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