Showing posts with label popular books on perpetual motion. Show all posts
Showing posts with label popular books on perpetual motion. Show all posts

Sunday, November 1, 2015

Perpetual Motion Machines book currently has a bestseller rank!

  • #1,851,174 in Books (See Top 100 in Books)
    • #489 in Books > Engineering & Transportation > Engineering > Reference > Patents & Inventions

More books including this one at http://www.amazon.com/author/nathancoppedge