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<blockquote data-quote="Umbran" data-source="post: 6682314" data-attributes="member: 177">It only requires a separate thread if it goes into a repeated back-and-forth.I'll refer you to something more like a reliable science blog on the topic:&nbsp; <a href="http://www.iflscience.com/no-em-drive-will-not-lead-warp-travel-any-time-soon" target="_blank">http://www.iflscience.com/no-em-drive-will-not-lead-warp-travel-any-time-soon</a>To summarize:&nbsp; &quot;The EM Drive is a hypothetical form of propulsion that uses microwaves in an enclosed chamber to create forward thrust.&quot;&nbsp; There have been several experiments that have reported *tiny* amounts of thrust.&nbsp; And by tiny, I mean (if my envelope-back calculation is correct) enough force to hold up one-tenth of one grain of rice against the force of Earth's gravity.&nbsp; And that's not &quot;the device + that bit of rice&quot;.&nbsp; It is *just* the rice.The most recent experiment that I know of didn't verify the effect, so much as eliminate some of the possible sources for erroneous measurements of effect.Can it work?&nbsp; I shrug.&nbsp; I don't know of any solid analysis saying it should.&nbsp; What I have seen includes some pointed hand-waving at particular areas, which doesn't sit well with me.&nbsp; There is a basic reason it should not work - conservation of momentum.&nbsp; Thus, I am skeptical.&nbsp; If they've found some new form of interaction that makes it possible, that is awesome.&nbsp; But, I have severe doubts, and will wait until experiments confirm the effect is real before I worry all that much about it.</blockquote>

[QUOTE="Umbran, post: 6682314, member: 177"] It only requires a separate thread if it goes into a repeated back-and-forth. I'll refer you to something more like a reliable science blog on the topic: [url]http://www.iflscience.com/no-em-drive-will-not-lead-warp-travel-any-time-soon[/url] To summarize: "The EM Drive is a hypothetical form of propulsion that uses microwaves in an enclosed chamber to create forward thrust." There have been several experiments that have reported *tiny* amounts of thrust. And by tiny, I mean (if my envelope-back calculation is correct) enough force to hold up one-tenth of one grain of rice against the force of Earth's gravity. And that's not "the device + that bit of rice". It is *just* the rice. The most recent experiment that I know of didn't verify the effect, so much as eliminate some of the possible sources for erroneous measurements of effect. Can it work? I shrug. I don't know of any solid analysis saying it should. What I have seen includes some pointed hand-waving at particular areas, which doesn't sit well with me. There is a basic reason it should not work - conservation of momentum. Thus, I am skeptical. If they've found some new form of interaction that makes it possible, that is awesome. But, I have severe doubts, and will wait until experiments confirm the effect is real before I worry all that much about it. [/QUOTE]

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