A crystal is the hardest rock in the world and it would take more than you imagine to crush/brake one.
Gold is a soft metal, in the past people used to test the quality of the gold by biting it. It has a hardness of 2.5.
I can't tell if you mean "crystal" as in "made of a crystalline material" or "crystal" as in "made of lead crystal, which is not technically a crystal at all". Take it to a jeweler. There's not any simple foolproof way a layman could tell.
a snow flake will melt right away and a snow crystal will take a while to melt
Take normal sugar and add it to boiling water. Add as much as the water will hold. Put a string or thin stick in the mixture and let it cool and set for many days. The resulting crystals are an example of how nature makes crystals over much longer timescales. If you want a bigger crystal, repeat the experiment while letting the string or stick from the previous experiment bathe in the mixture.
Take the two and scratch them off of each other. Which ever is scratched is the crystal. Diamonds are always harder. You can also try to scratch it off of other things too, but the diamond will never scratch.
500 kilo (i think)
2,500 pounds of pressure
Crystal meth
The human male testicles are made up of super strong tissues. So strong that it could take up to 2.5 tons of pressure to crush/pop them. That is not however the same for cutting them open, that just takes a sharp object like for example a knife ;].
Depends on the size of the foot - a child's food will take far less pressure to crush than an adult man's foot.
if i normally take 3 tablets that last for four hours, do i crush that same amount for a better high?
putting weights on top of the sweet and seeing how much the sweet will take to crush dropping them from a height
you are pushing up your own weight.
weight is measured by how much gravity is pushing down on you. weight is different from mass because mass is how much room you take up. weight is how much something or someone weighs.
To crush a small to mid size car it takes roughly 2300 psi. If you want to crush a big truck, SUV, or bigger vehicle you will need more than 2400 psi.
Take your weight in pounds and divide by 2.2 to get your weight in kilograms.
weight of cerebellum