Not really an "unusual machine in action" - but (in 1973) a granted patent application:
"A controlled thermonuclear fusion reaction is ignited by one or more pulsed laser beams
produced by lasers and reflected or focused on to a central reaction zone on the underside of the platform."
Video (2:27)
Links:
https://en.wikipedia.org/wiki/Britis..._flying_saucer
https://www.theguardian.com/science/...ansportintheuk
Patent application/ How-To for intrepid HMT:ers,
(who really wants to push the limits of Backyard Ballistics beyond Outer Space via thermonuclear propulsion):
https://worldwide.espacenet.com/pate...pn%3DGB1310990
Bookmarks