Ancient mechanisms

  • Thread starter Defennder
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  • #26
baywax
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Have a look at this for modern ideas on mechanisms that could (theoretically) last for some 1000 years:

http://en.wikipedia.org/wiki/Clock_of_the_Long_Now

(sadly, they have planned for some human maintenance - cheaters ! :grumpy:)

This guy's never heard of a sun dial.:confused:
 
  • #27
Defennder
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The sundial becomes inaccurate after some time. I can't quite remember why, though.
 
  • #28
baywax
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The sundial becomes inaccurate after some time. I can't quite remember why, though.

Probably because of what I mentioned in this post on this thread.

Many of the "temples" are actually large astrological measuring devices that recorded the occurrence of the summer/winter solstices and summer/winter equinoxes. The marks that pin point these dates have since been displaced by the phenomenon of "precession" (the earth's 26,000 year cycle of wobble in orbit) and this "displacement" is equal to the effects of precession by a 10,000 year error.
 

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