When people talk of hydrogen as an energy source for cars it bothers me. Like a battery it's just a way to store energy and quickly transfer it to the car (the electrolyte emptying/refilling of a battery would actually be useful if it could be done for battery chemistries that matter, for fast charging). Hydrogen tanks are still likely filled with hydrogen (inefficiently) extracted using electricity from the grid.
Magnetism is still pretty mysterious to me. One reason big, strong neodymium magnets are so cool to hold.
When people talk of hydrogen as an energy source for cars it bothers me. Like a battery it's just a way to store energy and quickly transfer it to the car (the electrolyte emptying/refilling of a battery would actually be useful if it could be done for battery chemistries that matter, for fast charging). Hydrogen tanks are still likely filled with hydrogen (inefficiently) extracted using electricity from the grid.
Magnetism is still pretty mysterious to me. One reason big, strong neodymium magnets are so cool to hold.
(post is archived)