The controversial (to say the least) "EmDrive" which generates thrust by just bouncing radiation around inside a sealed cavity (in contravention of the accepted laws of physics) has been shown to do nothing of the kind.

A NASA experiment a couple of years ago amazingly supported the idea, but a closer look has proven they were wrong.

Damn, it would have been an amazing concept for revolutionising space travel.

phys.org/news/2021-04-comprehensive-emdrive.html?utm_source=nwletter&utm_medium=email&utm_campaign=weekly-nwletter