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What is the Meaning & Definition of telescope

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Optical device that allows you to see distant elements in detail

He is designated with the name of telescope to all those optical tube devices and which serve to see in detail elements that are within the distance and that are impossible to observe with the naked eye, especially celestial bodies. In the majority of cases, the telescopes are used to observe the most unique characteristics of various celestial bodies that form the system solar and, depending on its complexity or scope, provide some very important details to the science in pursuit of which man continue understanding the universe.

Basic tool of astronomy to observe celestial bodies

As a result this instrument has a special and extended use in astronomy, incidentally being his basic tool.

Origin and history

The telescope term comes from the Greek word teleskopein, which means 'see far'. Find an exact date of creation of the first telescope is not an easy task due to the many projects created by human beings throughout history, it is estimated that the first really useful models were designed in different times of 16th-century Europe of the North. At the beginning of the 17TH century, the footballer Galileo Galilei, Italian astronomer recognized and closely associated with the scientific revolution, used a telescopic device to carry out their investigations and observations on the operation of the solar system.
The pioneer in its design was a German named Hans Lippershey eyeglasses manufacturer, in both, some time later, Galilei, perfects it but is inspired by a telescope of Dutch origin, although it quite deformed objects that focused, but Galileo and its expertise managed to increase its object about six times and put together the unit with two lenses, convex glass and an eyepiece. With its creation in the year 1609, Galileo, could see the Moon, the planet Jupiter and several stars and soon the moons of Jupiter.
But the progress and improvements continued, for example, Isaac Newton, manufactured a telescope called reflector which used a curved mirror which replaced the objective glass; close to the focus placed another mirror with the mission that rays of the reflector is desviasen when they überdas to the eyepiece.

How does it work?

The telescope operates on the basis of a lens which can, in the most developed cases, exceed 200 mm. in diameter, and which, therefore, allows to observe details of celestial bodies and nebulae to enormous distance. Some of these telescopes allow even observing other galaxies, although these are cases of exclusively scientific and impressive size. While any human being can have a telescope of small or medium-sized in their own home, usually larger telescopes, true technological moles, are in observatories and planetary scientists.

Telescopes outside the Earth's orbit: Hubble

Some other telescopes have also been specially designed to orbit, i.e., to exit the Earth's atmosphere and stay in the orbit of a celestial body specific or same outer space, achieving incredible images (such is the case of the famous Hubble space telescope or the telescope Hale).
In the special case of the Hubble telescope, the same orbit around the Earth and on the outside of the atmosphere. Focuses on achieving images of space the most accurate possible and obviously with a possibility of doing so much larger than the telescopes that are in the Earth's surface. It has access to astronauts, for visits or to make necessary repairs.
He is called that way in honor of its creator, the American astronomer Edwin Hubble, who managed that it was put in orbit in 1990 in a plan that funded NASA.
Among the many contributions that has brought the Hubble stands have been able to photograph to the most distant of our planet (thirteen thousand seven hundred light-years) Galaxy and also contributes to more accurate information about galaxies and unravel the beginning of the world.
Article contributed by the team of collaborators.

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