Buoyancy control by farting

[Denise]

Gas in the bowel is not under pressure as the bowel dilates to accommodate the expanding volume until it is released! therefore it doesn't make any difference whether it is in your suit or in your bowel.. However, if you manged to compress a couple of litres into a cylinder and hooked it up to your drysuit??? well thats food for thought!

[chrisch]

Originally Posted by Denise

Gas in the bowel is not under pressure as the bowel dilates to accommodate the expanding it is released! ...

Ahh yes but that would change your total displacement volume surely. That would therefore have an effect on buoyancy.....

Chris

[Prometheus]

This is an example of the scatalogical type thread that gives us all a bad reputation, unzip my suit would you.......snigger.

[frosty the snowman]

Originally Posted by Denise

Gas in the bowel is not under pressure as the bowel dilates to accommodate the expanding volume until it is released! therefore it doesn't make any difference whether it is in your suit or in your bowel.. However, if you manged to compress a couple of litres into a cylinder and hooked it up to your drysuit??? well thats food for thought!

Ah but when the gas is in your intestine, the increase in intestinal volume is compensated for by the compression of other structures and gas spaces within the peritoneal cavity so overall bouancy is unaffected. But when you do a trouser cough in your suit, the increased gas pressure will proportionately affect your suit volume and hence, according to Archimedes principle render you more positively bouyant.

[Denise]

but the volume needed to make such a difference would have to be..!! well they would need to see a doctor first

[Stesh]

Originally Posted by witchieblackcat

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?

Due to you have to keep getting buddy to pull your finger!

Also no one would volunteer to unzip you after the dive

[frosty the snowman]

Originally Posted by Denise

but the volume needed to make such a difference would have to be..!! well they would need to see a doctor first

And quite possibly a plumber too.

[chrisch]

Originally Posted by frosty the snowman

Ah but when the gas is in your intestine, the increase in intestinal volume is compensated for by the compression of other structures and gas spaces within the peritoneal cavity so overall bouancy is unaffected. But when you do a trouser cough in your suit, the increased gas pressure will proportionately affect your suit volume and hence, according to Archimedes principle render you more positively bouyant.

Well done - that was my point but you put it much better. Now, what if you have an auto dump....?

Can I take it those exhaust bubbles combined with no decrease in depth mean only on thing....

Poor fish.

Chris

[Denise]

No smoking please!!

[witchieblackcat]

Originally Posted by frosty the snowman

The average human produces about 1-1.5 litres of fart gas per day.

Does the average human eat beans for tea, go out for lashings of beer followed by a hot curry?