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The Earth's Matter's rotation is an example of inertia of perpetual motion. If there is no absolute rest then all inertia is perpetual motion.
Mitch Raemsch
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12 years ago
What is the inertia of EM wave or field
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12 years ago
It gains momentum. The light isn't a massive object, with momentum proportional to velocity; it's a wave, and we have momentum =3D power/ speed.
Mirror immersed in liquid (with index > 1).
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12 years ago
A rather hefty delay .. It is now new year and the site is still ... lacking.
Rene