Gilbert light experiments for boys . ward one side. Sight Fig 129 You gee a gMfted candle along a ruler through the prism at this line and draw a line CD along the ruler. Nowremove the prism, draw short perpendiculars at B and C, andjoin BC. The light from A enters glass at B and is bent toward theperpendicular; it enters air again at C and is bent away from thesecond perpendicular. This is why the light is bent around acorner by your prism. Experiment No. 80. To see under water from a boat. Youcannot see things under water from air usually, because thelight reflected from the surface blinds y
Gilbert light experiments for boys . ward one side. Sight Fig 129 You gee a gMfted candle along a ruler through the prism at this line and draw a line CD along the ruler. Nowremove the prism, draw short perpendiculars at B and C, andjoin BC. The light from A enters glass at B and is bent toward theperpendicular; it enters air again at C and is bent away from thesecond perpendicular. This is why the light is bent around acorner by your prism. Experiment No. 80. To see under water from a boat. Youcannot see things under water from air usually, because thelight reflected from the surface blinds you to the light comingfrom beneath the surface. You can easily see through the sur-. Fig. 130. The light bends around a corner
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscientificrecreation
