Lynde, Carleton John, b. 1872, Gilbert, Alfred C. (Alfred Carlton), 1884-1961 · New Haven, Conn. : A.C. Gilbert Co. · leaf 89
lection. You can do this also as fol-lows : Stretch a blanket or tarpaulin between two boats and putyour head under it. The surface reflection is removed and youwill be able to see to great depths. Spotting Submarines. Submarines are easily spotted at greatdepths from a dirigible or airplane at a… … Fig. 134. You see a phantom pinPermission of Hurst and Company, publishers of childrens books and toys GILBERT LIGHT EXPERIMENTS 87 fleeted vertically upward is not so great as the vertical lightreceived from objects beneath the surface. Total Reflection. When light passes from water to air ina…
Light · Scientific recreations
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