While nitrogen is a gas at room temperature, it becomes a liquid when cooled down to negative 320 F. And when you take that liquid, and shove it under a vacuum, something amazing happens — as ...

When liquid nitrogen is exposed to the air, ... In enclosed areas, liquid nitrogen leaks can become deadly by pushing away breathable air, the U.S. Chemical Safety Board has warned.

Nitrogen is the most abundant gas in our air. Molecules of nitrogen are barely attracted to each other, so it needs to be made extremely cold in order for the molecules to come together and condense ...