Quote:
Originally Posted by Flyjet601
Great diagram Alcan.....thanks.
Here's is something I want to throw out.....
There is certainly smarter people on this forum than me, but......
"Bernoulli's Law" states that when the velocity of a fluid increases, its pressure decreases. So if I was to move my watch thru the water, the velocity of the fluid(water) would increase over the surface of the watch, therefore if Mr. Bernoulli is correct........would the pressure of the fluid not decrease???  Laws of Physics dont lie...
Can we change the water pressure by moving our watch thru water?
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Bernoulli's Law is correct but I believe that there is a slight misinterpretation.
When you are moving your watch through the water, the water pressure does not decrease since water velocity is not changing at all.
Moving your watch in the water, and having the watch velocity change is a whole different issue, kind of like you running really fast and seeing the trees passing your fast as well, yet the trees are not moving.
That is due to a different frame of reference, the same reason why Sir Issac Newton's Newton Law is not always true compared to Einstein's Law of Relativity.
Anyways, when the depth really matters to your watch, the water down there is pretty much still, just like when people say "Still water runs deep"...NOT.
Hopefully this kind of helps out, correct me if I am wrong.