Telescopes-1

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Introduction to Telescopes

Telescopes are optical instruments that make distant objects look magnified by using an arrangement of lenses or curved mirrors or various devices used to observe distant objects by their emission,absorption or reflection of electromagnetic radiation.




The first telescope was invented by Sir Hans Lippershey
in the 16th century his telescope was modified by Galileo Galilei.The first known practical telescopes
Hans Lippershey
were refracting telescopes invented in the Netherlands at the beginning of the 17th century, by using glass lenses. They found use in both terrestrial applications and astronomy.

The largest Telescope in the world is Gran Telescopio Canarias situated in the Canary Islands Of Spain :- It  measures 409 inches across.



The Largest radio telescope is the 500 metre aperture "FAST" situated in the Pingtang-Guizhuo province in China.
This telescope is made up of 4,450 triangular panels. It is the second-largest single-dish aperture after the sparsely-filled RATAN-600 in Russia



FAST

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