[Rockrolex]

Originally Posted by s7horton

The answer to your first question depends on whether you are in salt water for fresh water.

PSI can be approximated by using the following formulas:

Salt water..... psi = depth * 0.445 (or in this case 445 psi)

Fresh water.... psi = depth * 0.432 (or in this case 432 psi)

You really should add atmospheric pressure to this though so you would be at 459.7 psi for salt water and 446.7 psi for fresh water.

The area of a crstal is very close to 1 square inch (1.09). If we take the area the force is exerted over, we find that just over 500 pounds of force are exerted on the crystal at 1000 feet.

Anyone wanna double check my math and formulas, it's been a few years since I've been in school. Thanks!

My little handheld calculator came up with 501.+ so your 500 pounds estimate was certainly close enough for govt. work, Seth.