Please help, I need it for grade 8 science!
2007-05-31 08:09:01 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
There are all sorts of telecopes that detect all sorts of electromagnetic radiation.
On earth we use optical telescopes to focus visible light and radio telescopes to focus radiation in the "radiowave" band widths.
We have sent satelites into space which can focus visible light (Hubble) but also Infra-red, and x-radiation. By getting out into space the filtering effects caused by absorption and scattering by the atmosphere are removed. These are all helping to build a bigger picture of the universe as we see it and helps us to get a better understanding on its evolution and development.
2007-05-31 08:19:14 · answer #1 · answered by Wal C 6 · 2⤊ 0⤋
No there are radio telescopes, and others that detect various non-visible spectrums of light. In fact most high level astronomy is done with non-visible light telescopes these days.
2007-05-31 15:41:54 · answer #2 · answered by John L 5 · 0⤊ 0⤋
Telescopes detect nothing. A human eye does. Either by viewing directly through the telescope or by viewing an image produced by an image capturing device, such as a film or a camera, etc...
2007-05-31 15:17:18 · answer #3 · answered by Daniel T 4 · 0⤊ 0⤋
There are lots of other kinds of telescopes. Some other types are Infrared light, Ultraviolet light, radiotelecopes, Gamma and X-Ray telescopes (These are in orbit).
Infra red light is handy for telling how fast very distants things are moving away from us. You measure the Doppler shift of the light to calculate speed. Ultraviolet is emitted by our sun, we can take photos of just the ultraviolet wavelengths. Gamma and Xray telescopes look for high energy particles which can come from supernovae or material that's being sucked in to black holes.
2007-05-31 15:20:02 · answer #4 · answered by Dave O 3 · 2⤊ 0⤋
No some are designed to detect radio frequency and infrared which is below the visible light frequency. Others can detect ultra violet, above visible frequency, and even above that, x-rays, as the Chandra does
2007-05-31 16:32:25 · answer #5 · answered by rhino9joe 5 · 0⤊ 0⤋
There are radiotelescopes that detect radiowaves from stars, as well.
http://en.wikipedia.org/wiki/Radio_telescope
http://en.wikipedia.org/wiki/Telescope
2007-05-31 15:13:48 · answer #6 · answered by Anonymous · 0⤊ 0⤋