Tom Ring wrote:

...
Actually most learned people knew the world was round since before
Christ. The circumference was measured to something better than 10%
accuracy using only sticks and shadows.

tom
K0TAR

Actually, "sticks and shadows" is nice, for emphasis ... "wells and
shadows" would be a bit more accurate:

http://www.madsci.org/posts/archives...4968.Sh.r.html

Regards,
JS