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Why wouldn't a 30ft long snorkel work?

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Calvin.

Posts: 771 - Karma: 10

Karma: 10

Posts: 771

Ridiculous

Other than the fact that you would eventually be breathing old air.

There is something involving pressures and i can't figure it out.

I feel like an idiot

Nov 19 2008 12:56AM

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-Kieran-

Posts: 1009 - Karma: 12

Karma: 12

Posts: 1009

Insane

the real question is who let the dogs out?

Nov 19 2008 9:29PM

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Elg

Posts: 2998 - Karma: 3,881

Karma: 3,881

Posts: 2998

Addict

i saw something on tv once about something like this, about air pressure.

Some guys went down in a sub marine, with a pressure chamber in it. Then they taped one of the guys' mouth and nose with ductape and pushed him out of the sub. He started swimming towards the surface, but his lungs exploded on the way up cause of the pressure building up.

would this be possible?

Nov 19 2008 9:57PM

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user098123

Posts: 6072 - Karma: 18

Karma: 18

Posts: 6072

No Life

Boyle's Law:
P1*V1=P2*V2

If you are at say, 50 feet down and the pressure is hypothetically 5 atm, and the volume of your lungs at that pressure is also 5 L.

If he goes to the surface, where the pressure is 1 atm, you get the following:

(5 atm)*(5 L) = (1 atm)*(X L)
X=25 L

His lungs would have expanded to 5 times their initial volume, that is why divers have to be so careful surfacing. If you don't exhale and be very careful your lungs can definitely explode.

Nov 19 2008 10:08PM

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Hugh_Conway_jr

Posts: 746 - Karma: 467

Karma: 467

Posts: 746

Ridiculous

awsome thread, good points so far.

you dont have enough tidal volume to move the air through the snorkel, you would need a snorkel has has a volume less than 500cc. the diameter of the tube would have to be 8fr or higher, otherwise the resistance would too great to over come. so therefore, a 30ft tube with a volume less than 500cc would be to small to pass air, and a wider diameter would have a larger volume ... larger than your lung capacity.

Nov 22 2008 9:19AM

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