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.

Plural Wheels Plural Wheels Are Made To Turn Horizontally And To Remarkable Effects On The Visual Nerves By Looking Through facebooktwittergoogle_plusredditpinterestlinkedinmail