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Does "EmDrive" quantum effect produce thrust, in violation of Newton's Third Law?
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<blockquote data-quote="freyar" data-source="post: 6382511" data-attributes="member: 40227"><p>Well, this is the first I heard of it (though I did go on the radio this week to talk about Hawking's latest doomsday predictions). But I read through the links here and some of the links in them. My physicist's opinion is that this is just silly. The Discover Magazine blog linked has quotes from a couple of well-known and very good physicists about why this doesn't look like well-performed or thought-out physics. Just now, I looked at one of the EmDrive Inventor's papers, which looked pretty shoddy math-wise and certainly didn't have the appropriate math to talk about quantum mechanics (unless my eyes had glazed over by that point). Of course, it's worth noting that the EmDrive inventor doesn't think quantum mechanics is responsible for the effect --- that's an explanation from other scientists who know there's not a loophole to conservation of momentum in classical mechanics.</p><p></p><p>Then there's NASA's involvement. That was through the Eagleworks lab, which came up in this forum a few months ago regarding Alcubierre-like warp drive. As others in the links Dannyalcatraz posted note, Eagleworks' tests had some fatal flaws, including not running their tests in vacuum, which is absolutely critical if you're going to try to measure such a tiny effect. It's ridiculous they even announced the results.</p><p></p><p>And it's sad this is in the media when there's so much other cool science to talk about.</p></blockquote><p></p>
[QUOTE="freyar, post: 6382511, member: 40227"] Well, this is the first I heard of it (though I did go on the radio this week to talk about Hawking's latest doomsday predictions). But I read through the links here and some of the links in them. My physicist's opinion is that this is just silly. The Discover Magazine blog linked has quotes from a couple of well-known and very good physicists about why this doesn't look like well-performed or thought-out physics. Just now, I looked at one of the EmDrive Inventor's papers, which looked pretty shoddy math-wise and certainly didn't have the appropriate math to talk about quantum mechanics (unless my eyes had glazed over by that point). Of course, it's worth noting that the EmDrive inventor doesn't think quantum mechanics is responsible for the effect --- that's an explanation from other scientists who know there's not a loophole to conservation of momentum in classical mechanics. Then there's NASA's involvement. That was through the Eagleworks lab, which came up in this forum a few months ago regarding Alcubierre-like warp drive. As others in the links Dannyalcatraz posted note, Eagleworks' tests had some fatal flaws, including not running their tests in vacuum, which is absolutely critical if you're going to try to measure such a tiny effect. It's ridiculous they even announced the results. And it's sad this is in the media when there's so much other cool science to talk about. [/QUOTE]
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Does "EmDrive" quantum effect produce thrust, in violation of Newton's Third Law?
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