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|    sci.physics.research    |    Current physics research. (Moderated)    |    17,520 messages    |
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|    Message 15,832 of 17,520    |
|    Luigi Fortunati to All    |
|    Newton vs. Einstein    |
|    20 Sep 17 23:30:34    |
      From: fortunati.luigi@gmail.com              Newton claims that gravity is a force, Einstein denies it: for him it       is not a force (it is something else).              It is obvious that both can not be right: if gravity is a force, Newton       is right and Einstein is wrong, and if it is the reverse Newton is       wrong and Einstein is right.              It can not be otherwise!              Einstein is newer and Newton is more "ancient", so gravity should not       be a force.              So how do we "measure" gravity with the dynamometer that measures the       forces?              If it were not a force we should not be able to measure it with the       dynamometer!              --       Credere e' piu' facile che pensare       Believing is easier than thinking       Luigi Fortunati              [[Mod. note -- The simple answer is that (from the perspective of general       relativity) "gravity" is a fictitious force quite similar to "centrifugal       force" in Newtonian mechanics, arising from NOT being in a freely-falling       inertial reference frame.       -- jt]]              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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