Search results
Results from the WOW.Com Content Network
1672 — Laurent Cassegrain, produces a design for a reflecting telescope using a paraboloid primary mirror and a hyperboloid secondary mirror. The design, named 'Cassegrain', is still used in astronomical telescopes used in observatories in 2006. 1674 — Robert Hooke produces a reflecting telescope based on the Gregorian design.
Notes on Hans Lippershey's unsuccessful telescope patent in 1608. The first record of a telescope comes from the Netherlands in 1608. It is in a patent filed by Middelburg spectacle-maker Hans Lippershey with the States General of the Netherlands on 2 October 1608 for his instrument "for seeing things far away as if they were nearby." [12] A few weeks later another Dutch instrument-maker ...
Hans Lipperhey is known for the earliest written record of a refracting telescope, a patent he filed in 1608. [1] [2] His work with optical devices grew out of his work as a spectacle maker, [3] an industry that had started in Venice and Florence in the thirteenth century, [4] and later expanded to the Netherlands and Germany. [5]
The telescope is more a discovery of optical craftsmen than an invention of a scientist. [1] [2] The lens and the properties of refracting and reflecting light had been known since antiquity, and theory on how they worked was developed by ancient Greek philosophers, preserved and expanded on in the medieval Islamic world, and had reached a significantly advanced state by the time of the ...
Unlike an optical telescope, which produces a magnified image of the patch of sky being observed, a traditional radio telescope dish contains a single receiver and records a single time-varying signal characteristic of the observed region; this signal may be sampled at various frequencies.
1973 – UK Schmidt Telescope 1.2 metre optical reflecting telescope begins operation, located in Anglo-Australian Observatory near Coonabarabran, Australia; 1974 – Anglo-Australian Telescope 153-inch (3.9 m) optical reflecting telescope begins operation, located in Anglo-Australian Observatory near Coonabarabran, Australia
CEO Wendell Weeks talks about Corning Inc.’s innovations—ranging from Edison’s lightbulb to the face of your smartphone—and how its fiber-optic cables are powering the AI revolution.
Sir Howard Grubb FRS FRAS (28 July 1844 – 16 September 1931) was an Irish optical engineer.He was head of a family firm that made large optical telescopes, telescope drive controls, and other optical instruments.