Telescopes Essay, Research Paper

Telescopes????????? When you look through a telescope,

distant things seem nearer and bigger.?

Telescopes also help you to see things that are too faint to be seen by

the naked eye.? They can collect light,

rather as a bucket collects rainwater, and then funnels the light into the

eye.? Astronomers use telescopes to

explore the sky. ????????? The simplest telescope is a tube with

a lens at each end.? This kind is called

a refracting telescope.? The lens at the

front collects the light.? The one you

look through is called the eyepiece. ????????? A telescope that uses a curved mirror

to collect the light is called a reflector.?

The main mirror concentrates the light into another small mirror, which

then reflects it into an eyepiece.? ????????? No one knows for sure who invented the

telescope.? Hans Lippershey (a Dutch

spectacle maker) is usually said to have been the first.? In 1672 sir Isaac Newton announced that he

had made the first working telescope to use a curved mirror for collecting

light.