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    The Order of Time     - Carlo Rovelli  -  2018
   →  link           A point in spacetime is called an event, and requires four numbers to be specified: the three-dimensional location in space, plus the position in time.   An event is represented by a set of coordinates x, y, z and t.
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   Vianney Halter:  Watch Maker     -  websit e
    Masters of Time:  Independent Watchmakers     series  -  video
   link to magazine  - 2023
   link to PBS  NOVA  documentary
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