heliography definition

  • noun:
    • The scientific study of the sun
    • the skill of making a heliograph
    • the device of signalling by heliograph
    • The description of sun.
    • the device, art, or rehearse of telegraphing, or signaling, with the heliograph.
    • an early on photographic process conceived by Nicéphore Niepce, and still found in photo-engraving. It is made up essentially in exposing under a design or in a camera a polished material plate covered with a preparation of asphalt, and subsequently managing the dish with an appropriate solvent. The light renders insoluble those parts of the film which is attacks, and thus a permanent picture is made, that could be etched upon the dish through acid.
    • Photography.
    • a technique of signaling between distant things in the form of the heliograph.
    • overall, photography; specifically, some special photographic process; photographic engraving. Begin to see the herb, and heliographic engraving, under heliographic.
    • The description and mapping associated with area for the sunlight.

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  • Sentence for "heliography"
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  • Synonym for "heliography"
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