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/sci/ - Science & Math

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>> No.11836182 [View]
File: 17 KB, 412x273, laser sail.jpg [View same] [iqdb] [saucenao] [google]
11836182

>>11836118
laser recoil pushes in opposite direction of beam
photons impacting sail pushes in opposite direction of recoil
photons being emitting again as they bounce off sail pushes in opposite direction of wherever they are going, giving you net thrust
the thrust only cancels out if the laser beam is completely absorbed by the sail, which doesn't happen

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