NASA Tests EM Drive

[Minimalist]

http://www.dailykos.com/story/2015/05/01...tail=email

The EmDrive which made made headlines last year is back in the news with the results from a new set of tests by NASA showing that the drive has been successfully tested in a hard vacuum.

The EM drive is controversial in that it appears to violate conventional physics and the law of conservation of momentum; the engine, invented by British scientist Roger Sawyer, converts electric power to thrust without the need for any propellant by bouncing microwaves within a closed container. So, with no expulsion of propellant, there’s nothing to balance the change in the spacecraft’s momentum during acceleration. Hence the skepticism. But as stated by NASA Eagleworks scientist Harold White:

Interesting.