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- Newsgroups: sci.physics
- Path: sparky!uunet!cs.utexas.edu!tamsun.tamu.edu!zeus.tamu.edu!dwr2560
- From: dwr2560@zeus.tamu.edu (RING, DAVID WAYNE)
- Subject: Re: Aristotle and the Modern Physicist
- Message-ID: <24JUL199220140602@zeus.tamu.edu>
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- Organization: Texas A&M University, Academic Computing Services
- References: <mcirvin.711906105@husc8> <1992Jul24.024619.28944@nuscc.nus.sg>
- Date: Sat, 25 Jul 1992 01:14:00 GMT
- Lines: 28
-
- matmcinn@nuscc.nus.sg (Mcinnes B T (Dr)) writes...
- > But I do claim that many people
- >think of gravitation as an "interaction". Which it is NOT; this being
- >the main point of GR.
-
- So what does the gravitation constant measure?
-
- > To ask, "why does the Earth go around
- >the Sun?" is precisely analogous to asking Newton or Galileo why a free
- >particle moves in a straight line at constant speed.
-
- As Feynman was so fond of pointing out, Newton didn't know the answer.
-
- > "Gravity" was
- >all a mistake, resulting from our ignorance of spacetime curvature. How
- >does one quantize a mistake?
-
- Consider a Schroedinger's Cat apparatus where the box is large and contains
- a mass distibution instead of a cat, and a mechanism to alter the mass
- distribution if the nucleus decays. After a time the mass distribution
- will be in a superposition of states. How will a test particle outside the
- apparatus know how to fall?
-
- Equivalently, does curvature couple to the energy momentum tensor (an operator)
- or to its expectation value, or something else?
-
- Dave Ring
- dwr2560@zeus.tamu.edu
-