The telescope has been used for over 100 years!!!
Telescopes have been around since before the 1500's.
Note that Galileo did not invent the telescope. He was, however, the first person to use a telescope to examine the heavens. Previously, telescopes had only been used to look at distant locations here on Earth.
telescope
how long was the first radio telescope
Galileo's telescope was about 92.7 centimeters long. 36.5 inches long.
Telescopes have been around since before the 1500's.
Yes. Mars has been known since ancient times, long before the telescope was invented.
Note that Galileo did not invent the telescope. He was, however, the first person to use a telescope to examine the heavens. Previously, telescopes had only been used to look at distant locations here on Earth.
telescope
how long was the first radio telescope
Lenses had been known for some time before the telescope was invented. No one really specifically "invented" the telescope lens, they simply used existing equipment (lenses) in a new device (the telescope).
it ranges depending on the telescope...
HST has been in continuous orbit since it was deployed in 1990.
the largest telescope ever been put into the orbits is the Hubble space telescope
Nothing on that list is used in a radio telescope.
Galileo's telescope was about 92.7 centimeters long. 36.5 inches long.
Any telescope will do this but traditionally the old fashioned brass telescopes were refracting telescopes.A refracting or refractor telescope is a dioptric telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used in other devices such as binoculars and long or telephoto camera lenses. == ==