View Single Post
Old 01-06-2021, 12:54 PM   #3 (permalink)
Master EcoModder
freebeard's Avatar
Join Date: Aug 2012
Location: northwest of normal
Posts: 19,250
Thanks: 5,393
Thanked 6,350 Times in 5,092 Posts
The first patents of free-piston linear generators date from around 1940, however in the last decades, especially after the development of rare-earth magnets and power electronics, many different research groups have been working in this field.

If I leave here tomorrow, would you still remember me?
Lynyrd Skynrd -- Free Bird
  Reply With Quote