Liquid hydrogen and its favorite oxidizer, liquid oxygen, need to be kept at an extremely low temperature — minus 423 F — in order to maintain their liquid state, and this sort of refrigeration is tricky and c
Liquid hydrogen and its favorite
oxidizer,
liquid oxygen, need to be kept at an extremely low temperature — minus 423 F — in order to maintain their liquid state, and this sort of refrigeration is tricky and c
liquid oxygen, need to be kept at an extremely low temperature — minus 423 F — in order to maintain their
liquid state, and this sort of refrigeration is tricky and c
liquid state, and this sort of refrigeration is tricky and costly.