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The earliest telescopes used lenses to collect and bring together the starlight. What were the lenses replaced with? |
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Answer» The lenses were replaced with mirrors and the same is continuing till today with improvements Explanation : Dutch eye glass MAKER Hans Lipppershey invented the 1st telescope in 1608. He discovered that by simply peering through a pair of glasses held in front of each other a distant object appear much closer.In 1609 Italian scientist GALILEO Galilei used a home made telescope that made objects 30 times closer. With it he could see and observe the moon, the SUN and other planets.Telescope technology took ANOTHER giant leap forward in 1688 when scientist Sir Issac Newton built a completely different type of telescope using slightly curved mirror , instead of using lense , to collect light through reflection .Even the modern telescope mirrors but of huge sizes, for eg Himalayan Chandra Telescope is 2.01 meters (6.5 ft) in diameter, Hagar telescope has 7 mirrors with a TOTAL area of 4.4 sq mtr |
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