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Topic: What are space and time?
Replies: 184   Last Post: Nov 19, 2012 9:14 PM

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Rock Brentwood

Posts: 116
Registered: 6/18/10
Re: What are space and time?
Posted: Jul 29, 2010 4:41 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On Jul 22, 5:57 pm, Michael Gordge <mikegor...@xtra.co.nz> wrote:
> On Jul 22, 11:35 pm, bert <herbertglazie...@msn.com> wrote:
> > Spaceandtimeare two sides to the same coin. Einstein merged them.
> Only because he refused to accept / he rejected the law of identity.

It was not Einstein, but his teacher, Minkowski who "merged them". But
even this is wrong. It was Galileo who merged them -- what counts is
that the appearance of a mixed space-time symmetry. That's what
marries space and time. The marriage was already in place when the
extra "space-time" term in the transformation law appeared under
Lorentz. This did not effect the marriage, but merely consummated a
union that was already in place for around 300 years.

Before Galileo, the symmetries for space (3 degrees of translation
symmetry + 3 degrees of rotational symmetry) were separate from the
symmetries for time (1 degree of translation symmetry). After Galileo,
there were also the 3 extra degrees of symmetry: the boosts (3 degrees
of COMBINED space-time symmetry).

Hence, the union. A gunshot wedding that was kept quiet (even after
the union was consummated by Minkowski).

It took 300 years for the marriage to be consummated and 400 years for
the true age of the union to be recognized.


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