437
Superconductor Breakthrough Findings Replicated, Twice, in Preliminary Testing - Tom's Hardware
(www.tomshardware.com)
This is a most excellent place for technology news and articles.
Looks like as of 2016 a theorized coil superconducting battery has about 2 Mj/m^3^ while Gasoline is 30 Gj/m^3^^fn1
:(
Eager to see what other novel ways we can use this material though. If it is cheap and easy to make surely new ideas will be flowing fast.