Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 330
.The part of the attachment below the stage is the polarizer.The part in the draw tube is the analyzer. MICROSCOPY. 307 By turning the polarizer, the light being thrown directlyup the tube by the mirror, the field of the microscope willappear alternately Hght and dark, showing the partial… … Simple Polariscope for the Microscope. the field light, and it may, in addition to this, produce acolor effect. The colors depend on the thickness of thefilm and upon its position in the instrument. There are various chemical salts and animal and vegeta-ble substances which produce brilliant color…
Physics · Lantern projection · Electric apparatus and appliances
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