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The 'DiFF' Forum: Discuss Buoyancy control by farting in the General Diving Forums forums: Not sure where the right place to post this is so I picked DiFF because it seems like as good ...

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Old 12-10-06, 11:55 PM
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Buoyancy control by farting
Not sure where the right place to post this is so I picked DiFF because it seems like as good a place as any.

If you ate the correct diet would it be possible to control buoyancy (using a dry suit) just by farting and dumping?
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Old 12-10-06, 11:58 PM
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Quote:
Originally Posted by witchieblackcat
and dumping?


ewwwww
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Old 12-10-06, 11:59 PM
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sh*t idea.
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Old 12-10-06, 11:59 PM
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Quote:
Originally Posted by witchieblackcat
and dumping?
LOL! I mean excess fart...
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Old 13-10-06, 01:08 AM
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I always find that my pre dive ballast adjustments are better done prior to getting into my drysuit.
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Old 13-10-06, 08:34 AM
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Probably not. The average human produces about 1-1.5 litres of fart gas per day. Obviously that volume would decrease with depth so unless you're on a very high fibre diet with a very tight drysuit on a very long, very shallow dive, the answer would probably be no. Shame.
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Old 13-10-06, 08:37 AM
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my undersuit smells bad enough after a dive.
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Old 13-10-06, 08:44 AM
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Quote:
Originally Posted by witchieblackcat
If you ate the correct diet would it be possible to control buoyancy (using a dry suit) just by farting and dumping?
Get your basic physics together and you will realise that transferring gas from within the body at ambient to outside the body but still inside the drysuit still at ambient makes no change to buoyancy.

HTH
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Old 13-10-06, 08:59 AM
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Quote:
Originally Posted by nigelH
Get your basic physics together and you will realise that transferring gas from within the body at ambient to outside the body but still inside the drysuit still at ambient makes no change to buoyancy.

HTH
I think that would depend on the pressure.. If the intestinal gas is at a higher pressure than ambient then the bouyancy would be increased. But as you go deeper the expelled gas would not add to the overal volume.

This begs the question, how deep can one fart?

I guess the external (ie ambient) pressure on the abdomen wall have an effect on intestinal pressure so there must be a differential gradient between the inside and outside?

Nige come back mate, I've lost myself already...

I think I farted at 20m once, but I'm "straining" to remember

Chris
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Old 13-10-06, 09:25 AM
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Quote:
Originally Posted by nigelH
Get your basic physics together and you will realise that transferring gas from within the body at ambient to outside the body but still inside the drysuit still at ambient makes no change to buoyancy.
HTH
Surely, fart is produced from digested food and that food before disgestion is wither solid or liquid and uncompressible. Therefore you are producing a gas which will affect buoyancy.
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