"Dr J R Stockton" wrote in message nvalid...
In sci.astro.amateur message , Thu, 20
Sep 2012 22:11:43, Davoud posted:


I don't have time to do the searching at the moment, but I have to
think that ancient natural philosophers, whether in Greece or Persia or
China or parts unknown, knew the extent of the Earth's axial tilt.

http://en.wikipedia.org/wiki/Earth%27s_Axis#History.


“Pytheas of Marseilles measured the shadow of a gnomon at the summer solstice”
What does the angle of the top of this standing stone in Scotland signify to
you, Stockton?
http://images.travelpod.com/tw_slide...ey-islands.jpg
A gnomon, perhaps?
http://en.wikipedia.org/wiki/Gnomon

The way to measure the angle of the Earth’s tilt is with a shadow,
and standing stones date to 3500 BCE. You went too far looking
to China.

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