Optics And Wheels a Story of Lighting From the Primitive Torch to the Sealed Be

General Motors Corporation Research Laboratories

The book Optics And Wheels a Story of Lighting From the Primitive Torch to the Sealed Be was written by author General Motors Corporation Research Laboratories Here you can read free online of Optics And Wheels a Story of Lighting From the Primitive Torch to the Sealed Be book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Optics And Wheels a Story of Lighting From the Primitive Torch to the Sealed Be a good or bad book?

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We use delib- erately offset filaments to control the beam to make it move up and down in the two-beam headlight- ing system. The shape of the reflector, the type of lens, and the position and shape of the filament can be chosen, therefore, to give the exact beam which is needed to light the road.
BENDING LIGHT RAYS IT IS fortunate for us that light can be bent, or in technical lan- guage, refracted. In traveling from one transparent medium to an- other, such as from air to water, a light beam ...is bent. If this were not so, our eyes could not focus light coming to them and we would not be able to see an image. Refraction, or bending, takes place when light passes from one substance to another because light travels at different speeds in dif- ferent mediums. The speed is high- est in a vacuum and almost as fast in air, or about 186, 000 miles a second. It is only about three- fourths of this speed in water and two-thirds in glass.
A mechanical explanation of refraction can be made by using the billiard table.

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