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Old 22nd Feb 2015, 02:46
  #15 (permalink)  
boguing
 
Join Date: Jan 2006
Location: Dorking
Posts: 471
My empirical evidence proves that its always a sunny day when stuck in a church. I would imagine the same to be true for Galileo.

So he could just have watched the Sun's shadow passing whole tiles or bricks and applied some trig if necessary. He might have used candles, but by arranging them in an arc at equal spacing or at proportional spacings in a straight line he wouldn't need to have lit them.
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