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heliograph    
n. 照相制版,太阳摄影机,日光仪
vt.
vi. 用太阳摄影机拍摄,用日光仪传递

照相制版,太阳摄影机,日光仪用太阳摄影机拍摄,用日光仪传递

heliograph
日光反射信号器

heliograph
n 1: an apparatus for sending telegraphic messages by using a
mirror to turn the sun's rays off and on
v 1: signal by means of a mirror and the using the sun's rays


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  • Heliograph - Wikipedia
    A heliograph (from Ancient Greek ἥλιος (hḗlios) 'sun' and γράφειν (gráphein) 'to write') is a solar telegraph [1] system that signals by flashes of sunlight (generally using Morse code from the 1840s) reflected by a mirror
  • The Niépce Heliograph - Harry Ransom Center
    The Niépce Heliograph was made in 1827, during this period of fervent experimentation It is the earliest photograph produced with the aid of the camera obscura known to survive today
  • The Heliograph - Fort Bowie National Historic Site (U. S. National Park . . .
    The heliograph was the invention of a British engineer who attached a mirror to surveying equipment in order to redirect a beam of light on distant points Through the use of sunlight, mirrors, and a keying system to interrupt the signal, flashes could be thrown on and off a receiving station
  • Heliograph | signaling device | Britannica
    …and engineer who invented the heliograph, a signaling device that employs two mirrors to gather sunlight and send it to a prearranged spot as a coded series of short and long flashes
  • Mirrors of War: The 158-Year History of the Heliograph
    The heliograph's 158-year history spans from a mathematical surveying tool to a guerrilla warfare communication device This simple, reliable technology remains relevant across multiple technological revolutions
  • Heliographs: From Sun Signals to Early Telecommunications
    In the vast realm of human communication, innovative methods have continually emerged to bridge distances and transmit messages across great expanses One such fascinating technique is the heliograph, a device that utilizes flashes of sunlight reflected by a mirror to convey coded communications
  • Heliography: A Double Invention That . . . - Google Arts Culture
    Nicéphore Niépce called this first image a 'heliograph', literally 'sun writing' or 'work of the sun ' Announcing the principles of his method came with tangible accomplishments
  • Heliograph: Definition, Examples Quiz | UltimateLexicon. com
    A heliograph is an optical communication device that uses a mirror to reflect sunlight to a distant observer, typically by imparting a coded message through a series of flashes of light It was widely used in the late 19th and early 20th centuries, primarily for military and surveying purposes
  • HELIOGRAPH Definition Meaning - Merriam-Webster
    The meaning of HELIOGRAPH is an apparatus for telegraphing by means of the sun's rays flashed from a mirror
  • Microsoft Word - Heliograph - GVRHC
    DESCRIPTION: The heliograph was a communications device used to transmit messages over long distances It uses a mirror attached to a surveying device to direct a beam of light to a receiving station





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