enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Pantograph - Wikipedia

    en.wikipedia.org/wiki/Pantograph

    Diagram illustrating the principles used by William Wallace's eidograph. The ancient Greek engineer Hero of Alexandria described pantographs in his work Mechanics. [1]In 1603, [2] Christoph Scheiner used a pantograph to copy and scale diagrams, and wrote about the invention over 27 years later, in "Pantographice seu Ars delineandi res quaslibet per parallelogrammum lineare seu cavum" (Rome 1631).

  3. Christoph Scheiner - Wikipedia

    en.wikipedia.org/wiki/Christoph_Scheiner

    Scheiner published Pantographice, about the pantograph which he had invented as early as 1603, ... Christoph Scheiner 1575–1650, Ingolstadt 2000, 24–25.

  4. File:Sunspot instrument of Christoph Scheiner (1573-1650).jpg

    en.wikipedia.org/wiki/File:Sunspot_instrument_of...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  5. Mark Welser - Wikipedia

    en.wikipedia.org/wiki/Mark_Welser

    Christoph Scheiner observing sunspots. In late 1611, the Jesuit Christoph Scheiner, a mathematics teacher at Ingolstadt, using the pseudonym Apelles latens post tabulam (Apelles hiding behind the painting), [nb 1] wrote three letters to Welser, claiming the discovery of sunspots.

  6. Letters on Sunspots - Wikipedia

    en.wikipedia.org/wiki/Letters_on_Sunspots

    Mark Welser. When Jesuit Christoph Scheiner first observed sunspots in March 1611, he ignored them until he saw them again in October. Then, under the pseudonym Apelles latens post tabulam (Apelles hiding behind the painting), [14] he presented his description and conclusions about them in three letters to the Augsburg banker and scholar Mark Welser.

  7. Photostat machine - Wikipedia

    en.wikipedia.org/wiki/Photostat_machine

    These included the "manifold writer", developed from Christoph Scheiner's pantograph and used by Mark Twain; copying baths; copying books; and roller copiers. Among the most significant of them was the Blue process in the early 1870s, which was mainly used to make blueprints of architectural and engineering drawings.

  8. Helioscope - Wikipedia

    en.wikipedia.org/wiki/Helioscope

    Christoph Scheiner's Helioscope. A helioscope is an instrument used in observing the Sun and sunspots. The helioscope was first used by Benedetto Castelli (1578-1643) and refined by Galileo Galilei (1564–1642). The method involves projecting an image of the sun onto a white sheet of paper suspended in a darkened room with the use of a ...

  9. Selenography - Wikipedia

    en.wikipedia.org/wiki/Selenography

    After the invention of the telescope, Thomas Harriot (1609), Galileo Galilei (1609), and Christoph Scheiner (1614) made drawings also. [6] Denominations of the surface features of the Moon, based on telescopic observation, were made by Michael van Langren in 1645.