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telescope

A telescope is a machine that brings distant objects closer to see them clearly. The invention of the telescope helped in the study of planets, stars and various celestial bodies. The Muslim scholar Ibn al-Haytham was the first to talk about how to see things. Ibn al-Haytham used opaque for photography, where he explained that vision depends on the amount of light reflected or emitted by objects in the eye, so scientists later took advantage of this theory in an attempt to invent a device. that polarizes the eye. .  The telescope obtained as much light as possible from distant stars or reflected by swimming planets.

inventor of the telescope

 The first to build a telescope was Hans Libershai, a Dutch optician, in 1608. He installed two glass lenses in a narrow tube and noticed that the view seemed clearer for distant objects. He to study the sky and he managed to discover a lot of things.

telescope types

Telescopes vary in shape and size depending on use, there are some types that are as large as the reflector bowl and can reach a diameter of 305 meters, and in some types it can be very small, such as sighting rifles and telescopes.  Optical glasses and telescopes are among the most famous telescopes, as they see visible light as our eyes do, and there are other types of telescopes that monitor the radiation emitted by objects in space, such as: radio waves and x-rays. 
The telescope industry was initially based on lenses called refractor lenses. The largest telescope of this type is located at the Yerkes Observatory in Wisconsin, the diameter of the lens is 102 cm, and the length of the tube is 18 meters.

 Telescope Working Principle

Despite the variety of telescopes used, their principle of operation is similar, and the difference in design serves the purpose of their manufacture, since in most of these telescopes a lens or a mirror is used to form an image of an object, and then this object can be seen through the lens of a microscope, or recorded on optical film or using electronic devices, and an example of telescopes is the astronomical telescope: which is based on the principle of collecting the as many rays as possible from a distant celestial body, either by using a large lens or a large concave mirror, and then collecting the rays at the focus of the lens or mirror to form an image of an inverted Real miniature object, then this image is enlarged and seen, or can be.  Recorded on sensitive film or transmitted optically to a TV screen.







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