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Results tagged with water
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user 42514
Two Hydrogen atoms covalently bonded to one Oxygen atom. One of the more common compounds on the surface of the earth.
16
votes
4
answers
49k
views
Is there a depth at which a human body, with lungs full of air, will no longer float?
I was watching a special on divers who dove down hundreds of feet without tanks or gear. The show referred to a depth at which the diver was no longer buoyant and would actually sink, even with lungs …
- 1,217
12
votes
3
answers
4k
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Why is salt so hard to remove from water?
Water molecules and various salt molecules are very different. However, it seems very difficult to separate the two. … Once a salt is dissolved in water, an energy or chemical intensive method (like boiling) is required to separate the salt back out again. Why is this? …
- 1,217
8
votes
3
answers
894
views
Why does the gas cloud of an underwater gunshot pulse?
Then the bullet rips through the water, leaving an open space (which I assume is a cavitation vacuum.) …
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6
votes
1
answer
695
views
Is nuclear fusion via underwater vacuum possible?
An under water explosion creates a bubble which quickly collapses on itself. The action takes less that 1/100 of a second for bubbles less than a foot across. … Could the same effect be achieved by suspending a metal sphere under water which contains a near complete vacuum. …
- 1,217
1
vote
Effect of water pressure on sinking objects
It is possible to create solid water with enough pressure. Water has other frozen state which do not contain the standard water crystal pattern. This is called amorphous ice. … The water does not expand, which prevents the cell walls form bursting and helps to preserve the quality of the food. …
- 1,217
0
votes
1
answer
2k
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How much energy would it take to maintain the temperature in my pool?
Lets sat that I have a 1000 gallon pool sitting pretty at 82.4 degrees F (28 C). How much energy would it lose on a cold day (50 F or 10 C) and only the top was above ground (25 Sq Feet.)
Would th …
- 1,217