I'm sure many readers have read about the German V-1 flying bomb, the so-called 'doodle-bug' pilotless bomb of World War II.
It was powered by a pulse jet engine, with its distinctive on-off pulsation sound. It was so successful that the USA copied it, producing the JB-2 Loon. (You can see a 1945 film report about the latter here.)
Now an English inventor has built a pulse jet engine from scratch, and tested it in various ways - including powering a bicycle! I wasn't sure whether to title this post as I did, or make it one of my 'Doofus Of The Day' series due to his suicidal courage in actually riding the thing! Decide for yourself. Here are four videos, covering respectively the making of, initial testing of, further testing of, and bicycle version of the pulse jet.
The inventor, Colin Furze, has his own Web site where you can read more about his projects. "Mad dogs and Englishmen", indeed!