Wednesday, November 22, 2006

Intro : My Topic


What's the invention you use to see and observe far away and sometimes into space? If you guessed the telescope, you're right. I chose this topic because I've adored the idea of having a telescope on the balcony in the attic, observing the planets and stars at night. It seems a very fun and relaxing idea to me, and so I chose telescopes to research and learn about. They are usually used for observing things in space, things related to astronomy. One of the more famous telescopes is the 'Hubble Space Telescope'. It orbits in space around Earth, and observes objects in space, such as planets and stars.

There are different types of telescopes, with optical telescopes being the most common. Refracting, reflecting, catadioptric telescopes are all optical telescopes. Refracting telescopes, obviously, refracts light on lenses inside the telescope and forms an image. Catadioptric telescopes use an assortment of lenses and mirrors to refract and reflect to form pictures. The type of telescope I'm researching is the reflecting telescope.

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