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Q & A: Where do you get Liquid Nitrogen

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Most recent answer: 10/22/2007
Q:
Where did you get the liquid nitrogen?
- 5P students
Washington School, Monticello, IL USA
A:
There are businesses that make all sorts of gasses into liquids. A machine similar to an air conditioner is used to cool air until it becomes a liquid. Look at the question about making liquid nitrogen for more details.

Liquid Oxygen is used in rockets, liquid Helium and liquid Nitrogen are used in a variety of experiments. Liquid Nitrogen as it expands can even be used to power cars!

When someone needs a liquid, they can buy it from one of the places that makes it. Because liquids that cold can be dangerous, we have to have permission to buy it.

EJ

(published on 10/22/2007)

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