Posted: May 26, 2015 3:45 pm
by DavidMcC
lucek wrote:Again why do you feel the need to be in this thread when you've never apparently read what the thread is about.

Steve wrote:NASA: EM Drive shown to work in space-like 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:
[quote][T]he EM Drive’s thrust was due to the Quantum Vacuum (the quantum state with the lowest possible energy) behaving like propellant ions behave in a MagnetoHydroDynamics drive(a method electrifying propellant and then directing it with magnetic fields to push a spacecraft in the opposite direction) for spacecraft propulsion.

Thus, it troubles me that you seem to actually believe your strange claim that "no-one is talking about violation of Newton's third law", which has to do with conservation of total linear momentum. I would have though it was obvious even to you, that White was claiming to have found a violation of the third law. :roll:
EDIT: The bit I've bolded is suspiciously like pseudoscience, even if it was Sawyer who devised it, and certainly points to the need for independent verification of the supposed thrust and its mechanism.