File:The fireside university of modern invention, discovery, industry and art for home circle study and entertainment (1902) (14776194671).jpg

Identifier: firesideuniversi01mcgo (find matches)
Title: The fireside university of modern invention, discovery, industry and art for home circle study and entertainment
Year: 1902 (1900s)
Authors: McGovern, John. (from old catalog)
Subjects: Science
Publisher: Chicago, Union pub. house
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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oths and other colored articles of merchandise were secured bysomewhat similar means—the printer putting his paper to presson half-tone photographic cuts or pictures in three colors ofink—red, white and yellow. Even a black was well simulated.The selective action of the colors was astonishing, and suggestedthe need of entirely new theories of the laws of Light and theideas of color. What is a Stereoscope ? It is an instrument which takes advantage of the fact that thetwo eyes of a human being form different images of objectswithin certain distances. Euclid made the first optical demon-stration of this kind. Wheatstone and Brewster brought theStereoscope to the form usually seen in parlors, where each evelooks through a refracting prism, and pictured weeds or trees ina field stand out in a photograph, as if the photograph were areal field. What did this lead to ? The Magic Lantern was developed into a Stereopticon, andstereopticon pictures, much enlarged, were thrown upon a screen.
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E LIGHT AND HE A T. 333 With the invention of the Kinetoscope, its passing pictures wereplaced in a Stereopticon (See Kinetoscope) and the wonderfulreproductions of the Queens Jubilee, the Czars Coronation,the Corbett^Fitzsimmons encounter, the German military maneu-vers, and other stirring scenes, were exhibited to the peopleunder the names of Vitascope, Cinematographe, Ediscope, etc.The Edison Kinetoscope is a box holding the pictures, intowhich the spectator peers, beholding only miniature scenes, thatmove with extreme and unnatural rapidity. What is Heat ? Heat is that thing which follows or causes certain activities ofthe molecules into which the Elements and their compounds aredivided. If you take the temperature of your hand for athermometer, then anything in which the molecules are revolvingor meeting more rapidly than the molecules in your hand arerevolving—that thing is warm or hot; if less rapidly, that thingis cool or cold. How is Heat conducted ? Either by radiation thr

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