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 ...

these nitrogen-doped single-walled carbon nanotubes accelerate lithium-ion movement to silicon, enhancing charging speed and stability across numerous charge/discharge cycles. Additionally ...

Getting the right mix of gas to fill the tube has been a bit of a pain, though, since he was using a party balloon to collect carbon dioxide, helium, and nitrogen at measuring the diameter of the ...