http://www.mezzacotta.net/100proofs/
David Morgan-Mar of
Irregular Webcomic! and other endeavours is writing up one hundred demonstrations that the Earth is round, not flat. There's a lot of fun science in here.
This one has pictures of some sweet sundials.
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Yup
“There must have been a point in early human history when it was actually advantageous to, when confronted with a difficult task, drop it altogether and go do something more fun, because I do that way too often for it to be anything but instinct.” -- Isto Combs