Ion propulsion? Microwave radiation thrust? No, it's relativity! Quick quote: "Just as today no one realizes that you can use the effects of relativity to create propulsion. Namely, allowing the effects of relativity to absorb the extra momentum of a system of moving charged elements."
>From their kickstarter page: "The Effects that the SDF Drive Exploits to Generate Thrust Their still seems to be some misunderstanding on what effects that our device exploits to create thrust.Electric fields change their shape depending on the charge holding object that holds the charge and the relative velocity that the charges are observed from. This effect gives us the magnetic field, when these changes are observed outside of a conductor flowing an electric current. This change in an electric field is caused by the same force that gives us time dilation and apparent length contraction. This effect can’t be altered any amount of energy. So by using it to generate thrust you are in fact exploiting an infinite energy source. We are able to exploit this effect by using the fact that different shaped charged objects have different electric field changes when they are in relative motion. An example is a charged sphere has one kind of an electric field change due to its relative motion. A square would have a totally different set of changes to its electric field. So if a charged square was close to and in relative motion to a charged sphere, the sphere would see a different set of forces on it than the square would see. The momentum of the system would change. The current view of physics today is that this is impossible. Just like the belief that heavier than air flying machines are impossible. No one realized that you could use air pressure to fly and change the momentum of the flying machine by using its environment to absorb the momentum. Just as today no one realizes that you can use the effects of relativity to create propulsion. Namely, allowing the effects of relativity to absorb the extra momentum of a system of moving charged elements." From: [email protected] To: [email protected] Subject: RE: [Vo]:prototype for "only" $99,000 Date: Tue, 24 Mar 2015 23:18:24 +0100 Their Feature description for the drive says "Operates in a vacuum and at 1 ATM" /S [snip] ... I seem to recall a test was finally conducted on one of these ion propulsion devices within a vacuum chamber and the propulsion effect... disappeared. IOW, such a propulsion mechanism will not work out in the vacuum of space. Thus, it's not a space propulsion device. Does anybody remember the conclusions of that analysis? And are we absolutely sure the same physics is involved here? Regards,Steven Vincent Johnson
