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Refraction Of Light








In the middle of an empty basin put a piece of money, and then retire
from it till the edge of the basin hides the piece from your sight:
then keep your head steady, let another person fill the basin gently
with water; as the water rises in the basin the money will come in
view; and when of a sufficient height in the basin, the whole of the
piece will be in sight.




Next: Wonderful Nature Of Lightning

Previous: The Pressure Of Water



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