You can but its a very costly affair. you can use ice instead or ordinary freezer to cool your drinks
The simple awnser is cool it. You can use liquid nitrogen to do this.
Liquid nitrogen is not cold enough to supercool some superconducting magnets to make that magnet's superconductive properties emerge. It takes something like liquid helium to do that.
Rockets typically use Liquid oxygen and liquid hydrogen for fuel. I suspect this is what you are asking. I know of no rocket that uses liquid nitrogen.
No. Nitrogen does not irritate skin. But liquid nitrogen is extremely cold, and it can damage and kill skin (and other) tissue. It is a bad idea to allow your skin to come into contact with liquid nitrogen. Note: Some warts are "frozen" in an effort to remove them. In a clinical setting, liquid nitrogen is sometimes used to super-cool an instrument so the wart can be frozen. But this is a medical procedure and is done by professionals. Liquid nitrogen is not something that should be looked upon as a "toy" or "recreational plaything" by anyone.
because most of our atmosphere has nitrogen in it
Because it's dangerous.Because liquid nitrogen is expensive and inconvenient.Because liquid nitrogen will instantly evaporate once it comes close to fire.
Can be both, depends the temperature, if you cool it a lot it become liquid, at the atmosphere temperature will be a gas !. You can use it to inflate your tires i.e., at this temperature it will be a gas.
No. Refrigerators use a substance called Freon that can readily change from liquid to gas to liquid, moving heat from inside the fridge to the outside. Liquid nitrogen is FAR too cold, and requires too much energy to make the change from gas to liquid.Yes, liquid nitrogen is used in refrigerators. Nitrogen is a diatomic gas. The two nitrogen atoms are bond with a triple bond.
use of liquid nitrogen in refrigerator
I'm not sure what the most recent method is, but most computers use heat sinks and cooling fans to keep them cool however there are other methods such as liquid cooling, complete submersion in mineral oil, and even liquid nitrogen cooling. Extreme methods, such as liquid nitrogen, are usually used when overclocking a computer.
A space shuttle uses a combination of liquid oxygen and liquid nitrogen.
put it inside an eppendorf tube and throw in liquid nitrogen. of course it depends what you are planning to do in next step. you can use a mortar and pestle if you want to grind.