kottke.org The Brennan Self-Balancing Monorail This is so cool: in the early 1900s, a mechanical engineer named Louis Brennan … This is so cool: in the early 1900s, a mechanical engineer named Louis Brennan invented a self-balancing train that ran on a single track. This video demons keine reaktionen (alle reaktionen in der beilage) likes erwähnungen reposts bookmarks kommentare aufrufe
