What is a telescope?

Almost every adult hasthe idea of what a telescope is. However, not so many people have seen this tool at least once in their life and even less had the opportunity to use it. Meanwhile, if desired, the telescope can easily be purchased at a specialized store. The main thing is to understand why it is needed, so that the telescope can not be dusted anywhere in the corner.

In fact, a telescope is an instrument usingwhich can be observed for remote objects by collecting electromagnetic radiation. To date, several types of telescopes are distinguished depending on the range of the electromagnetic spectrum:

Optical telescope - such a device is consideredmost popular. The optical telescopes include binoculars and a telescope. With their help, you can view small parts and removed objects. In addition, from the point of view of optics, the lens of this type of telescope is a photographic lens. And, depending on the device, there are lens, mirror and lens-mirror telescopes.
Radio telescope - it is used to study various space objects. In appearance, it resembles a huge satellite dish, and the principle of action they have is similar.
X-ray telescope - designed forobservations of objects in the X-ray spectrum. The first such kind of telescope was used to observe the sun. In this case, such devices need to be raised above the atmosphere of the Earth, so that they work correctly.
Gamma-telescope - this device is used by astrophysicists to study the universe. With its help, gamma rays emitted from the objects of the Metagalaxy are recorded.

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