Telescopes

Radio telescopes are generally much larger than optical telescopes for two reasons: First, the amount of radio radiation reaching Earth from space is tiny compared with optical wavelengths, so a large collecting area is essential. Second, the long wavelengths of radio waves mean that diffraction severely limits the resolution unless large instruments are used.

Most large earth bound telescopes cannot see clear images of objects in deep space. Our. atmosphere distorts the pictures with shimmery air. The HST (Hubble Space Telescope) has the advantage because it is in space and has almost no distortion. It can see much farther than regular telescopes.

Refracting

A 1 m telescope has a collecting area of pi x 1 x 1 = 1 pi
A 3 m telescope has a collecting area of pi x 3 x 3 = 9 pi.
Therefore, the bigger telescope collects 9 times as much light.

each star is like a fat little kid eyeing a box of cookies. Except in this case earth is the cookies. And eating the cookies is an apocalyptic scenario where everyone dies. for this reason people use telescopes to keep the stars under constant surveillance, because if the stars know they're being watched, they wil not attack.

Saturn is the last planet that can be seen without using a telescope or binoculars and the planet was known in the ancient world before telescopes were invented. The rings, however, can only be seen using a telescope.

Space-based telescopes can see further in space as they don't have to make do with a disturbing atmosphere (slight differences in temperature in atmospheric layers lead to perturbations of photos). So, very long exposures (over hours) can reasonably be made without having to fear such undesired phenomena. Very long exposures also means that the very faint sources of light (at the edge of the observable universe) can also be pictured so that they can be distinguished from the background noise. This way, space telescopes see further.

A telescope collects electromagnetic radiation to view objects far away. A telescope is a device used to observe remote objects and used in the study of astronomy. The first telescope was made in the 1600's..

A refracting telescope is a type of optical telescope. It was used in astronomical telescopes and spy glasses. Objective lens are used to produce the image.

Observatory

There have been four rovers to successfully land and function on Mars, plus a number of probes and orbiters. The first of these rovers was Sojurner, which launched on December 4, 1996 and landed on Mars on July 5, 1997. After that were the twin rovers Spirit and Opportunity, which were launched June 10, 2003 and July 7, 2003, respectively. They landed on January 4 and 25 of 2004, respectively. Finally, the rover Curiositylaunched on November 26, 2011 and landed on August 6, 2012. Only Opportunity and Curiosity are still functional and mobile.

Telescopophy technology is associated with telescopes.

The disadvantage are that it can cause skin cancer if you are exposed to sufficient amounts of UV light (in particular, UV-B and UV-C light).

See the Related Questions link to the left of this answer for more information about that: "How do UV-B rays affect people?"

One of the beneficial uses of UV light are that it can be used to kill bacteria and other microbes. It is commonly used to purify water for instance or clean things. UV light can also be used for a variety of other of application, such as black lights (which just look cool!). Also many compounds fluoresce (they emit light) when exposed to UV light. This is how forensic scientists can find traces of blood and other bodily fluids at crime scenes for instance. Finally exposure to some UV-B light causes the body to make Vitamin D, an important nutrient. While some exposure is important too much will cause sunburns and possibly cancer.

Reflecting telescopes tend to be more expensive than refracting telescopes due to their larger mirrors and complex design. Reflecting telescopes also require more precise alignment of their optical components, which can add to the cost.

Its Your Face

well idk what this telescope does so do your HW and dont look it up!

Galileo

• optical telescopes - high mountain far from city light pollution
• radio telescope - anyplace with little radio interference in the bands it operates in
• x-ray or gamma ray telescope - in orbit
• neutrino telescope - deep in an abandoned salt mine.
• etc.

When we are looking through a magnifying glass from a position far away from the focus , a real image is formed which is inverted.This inverted image cannot be obtained on the screen.Hence we see the image upside down. However if we look through the magnifying glass at a position between the optical centre and focus a virtual,erect and magnified image will be formed.This can be obtained on the screen.

they did it to get more detailed pictures of space

Large telescopes are needed to collect the weak radiation, coming from faint or very distant sources. The larger the aperture, the brighter the final image will be.

The aperture also has to be much larger than the wave length of the radiation being observed otherwise diffraction will spread the star light out and the image will be blurred not sharp. Radio waves have a very large wave length, so these telescopes are enormous!

The resolving power of a telescope measures how well it can distinguish stars that appear close together. It depends on both the aperture size and the wavelength used.

Aperture=light-gathering area of the telescope.

Galileo Galilei used a telescope to make detailed observations of the stars and planets. He is most well known for suggesting that the Earth revolves around the Sun, and not the other way around.