What if you have a need for liquid nitrogen, but you do not wish to simply order it from a local supplier? In that case you can build your very own pulse tube cryocooler, as [Hyperspace Pirate] is ...
Liquid nitrogen is fun stuff to play with, as long as you’re careful and avoid freezing your own fingers off and shattering them on the workbench. As the liquid turns to gaseous nitrogen at ...
After freezing, the water molecules are further apart than they were as liquid water. As solid ice, the molecules are further apart, arranged in an orderly pattern, and not able to slide past each ...