[drillsteps5]

I remember in the 80s, after mostly having given up on perpetuuum mobile, bunch of people were trying to invent something like this, using vibration etc which worked on Earth but would not in a vacuum... Looks like a new generation took the baton. Like this guy:

https://www.popularmechanics.com/space/rockets/a65924333/eng...

An Engineer Says He’s Found a Way to Overcome Earth’s Gravity

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

"In 2001, British Electrical Engineer Roger Shawyer first introduced the “impossible drive,” known as the EmDrive. It was called “impossible” because its creator purported that the drive was reactionless, meaning no propellant required—in other words, it defied the known laws of physics (specifically, the conservation of momentum)."