The EmDrive 'impossible engine' was built and tested- it works because of magnetic waves

EmDrive is a machine that produces thrust without exhaust and is seen as one of the frontline technologies that can finally take humans interstellar. A recent study was able to build an EmDrive and also test it, but it seems like the Earth's gravity plays a big role in its working.

from IBTimes.co.in : Science https://ift.tt/2J2zIf3