I put on my cutest bikini, grab a bucket that holds one cubic foot of volume, and a 50 pound weight, and jump in the pool. I submerge the bucket, evacuating all of the air, and turn the bucket upside down. I put the weight on top of the bucket. My girlfriend, who looks terrific in her one piece bathing suit, holds a 4 ft length of hose about 2 feet below the bucket and blows into the hose. The air fills the bucket and eventually lifts the weight (one cubic foot of air will lift 62 lb in water)(adsbygoogle = window.adsbygoogle || []).push({});

Here is our bigger question-

As we increase the depth, lets say to 100 ft, will air released below our bucket actually deflect from entering the bucket due to greater pressure, or will it displace the water and fill the bucket with the same ease as it does near the surface? There is no need to consider the volume of air needed due to the increased psi at depth. Our concern is strictly regarding the ability of the air to displace the water in the bucket. We wonder if the air will choose the path of least resistance and rise to the bucket, then deflect off to the sides and up to the surface without filling the bucket. Do we have to actually insert the hose up into the bucket now at this depth? If it is true that the greater depth pressure causes a different reaction when the air reaches the base of our bucket, is there a formula to determine this at different depths?

Thx,

Kit

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# Bikini, bucket, and a hose (water displacement)

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