Reactionless propulsion still implausible: news at 11https://twitter.com/arstechnica/status/801190566780354560 …
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Replying to @Reedbeta
Maybe it's bc I'm a physics buff, but it's disconcerting to see how many usually-smart people are uncritically claiming "the EM drive works"
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Replying to @Reedbeta
Yeah. "But maybe conservation of linear momentum isn't..." - stop right there, read up on Noether's theorem!
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Perhaps the drive works without violating conservation of momentum by tugging on distant objects.
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After all, quantum fields can transmit forces between distant objects in many other ways.
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e.g. Mach's Hypothesis posits breakthrough propulsion compatible with existing laws of physics. https://en.m.wikipedia.org/wiki/Mach's_principle …
5:00 PM - 22 Nov 2016
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