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This best answer describes a reflecting telescope. The maximum size for a refractor on Earth is about 40 inches due to gravitational sag. Palomar's primary mirror is some 16 feet in diameter, and the Keck telescopes use several large mirrors that are computer-controlled and act as a single disk twice the size of Palomar.
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∙ 14y ago
Wiki User
∙ 15y agoA reflecting telescope uses parabolic mirrors to create a magnified image of a celestial body like a star. The Hubble Space Telescope is an example of a reflecting telescope.
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∙ 13y agoThese are called refractory telescopes.
Reflectory telescopes use mirrors to focus the light.
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∙ 10y agoA radio telescope.
-Megan Furelli
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∙ 15y agoA radio telescope.
Wiki User
∙ 10y agodude
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Is a thermometer a thermal insulator?
It depends on the material out of which the dish is made. Materials are considered conductive if they transfer heat faster than the surrounding medium and insulators of the transfer heat slower than the surrounding medium. If the medium is air, a glass dish will be a thermal insulator but a metal dish will be a thermal conductor.The rate at which heat flows through a material is related to its thermal conductivity.
Can you use regular dish soap dawn in a dish washer?
Nope - you have to use special dish washing soap
What is a small shallow dish called?
a small, shallow dish
How do you use an petri dish?
a petri dish is used to study small things
A shallow glass container used to prepare cultures in science lab?
beakercould be a petri dish
Why the radio telescope dish is not solid?
Nothing is "solid"; there are always holes, gaps in matter. An object APPEARS solid when the wavelength of the radiation used is longer than the size of the gaps or holes. The radio waves that radio telescopes use are several millimeters long, and the mesh in a radio telescope dish is smaller than that - so to a radio wave, the dish looks solid.
Does a radio telescope have a dish reflector?
Yes.
In principle the dish of a radio telescope operates in the same manner as the?
Concave mirror of a reflecting telescope
Which instrument uses a dish antenna?
radio telescope does.
How big is the lovell telescope?
The Lovell telescope has a steerable dish of 76.2 m (250 ft) in diameter
What does a radio telescope and a reflecting telescope have in common?
Reflective and Radio telescopes gather radiation at different parts of the electromagnetic spectrum that they operate, visible light for the optical telescope and Radio frequencies for the Radio telescope. But in both cases, it's electromagnetic radiation. Radio telescopes have to capture the incoming energy that's needed to be above a certain noise and gets processed in electronic circuitry. The result is plotted out as picture of which each point indicates the location at which the beam of the antenna is pointed. It has a huge dish to reflect the incoming energy like that in a reflector telescope. The same terminology can be used in reflecting telescope, but the processing is done in a CCD camera positioned at the focus of the telescope.
What is a radio telescope made out of?
Radios are electronic devices which grab signals and turn them into sound. They are composed of electrical circuits and of the various electrical and electronic components that are needed to make those circuits which in turn make the radio itself work.
How does a radio telescope gather radio waves?
Exactly the same way that an optical telescope gathers waves with wavelngths shorter than radio waves: Both the mirror of a reflecting telescope and the 'dish' of a radio telescope are built to have the shape of a 'paraboloid' ... that's the solid shape you get when you spin a parabola around its nose. The paraboloid has the interesting geometric property that anything that comes straight in, parallel to its axis ... whether it's bees, bullets, B-Bs, or electromagnetic waves ... and bounces off the inside of the curve, all winds up at the same point, called the "focus" of the paraboloid. -- The focus is where the film, or the eyepiece, the CCD, or the spectrometer of the reflecting telescope is placed. All the light that hits the whole mirror is concentrated onto it. -- The focus is where the radio receiver of the radio telescope is placed. All the radio waves that hit the entire dish are concentrated onto it. -- The focus is where the little LNB on the end of the arm that sticks out in front of the TV dish on your neighbor's garage is placed. All the microwave waves from the TV satellite that hit the entire dish are concentrated onto it.
In a radio telescope radio waves strike a large curved?
Concave dish
Why is a metal dish used as the framework of a solar panel?
A metal dish is used as the framework of a solar panel because the sun heats the metal, heating the water inside
What is the name for the biggest telescope?
Currently the largest optical telescope is "The Great Canary Telescope" (Gran Telescopio Canarias) in Spain, it has an apeture of 10.4 metres. There is an optical telescope under construction in Chilie that when completed will have an apeture of 21.4 metres, called the Giant Magellan Telescope. The largest single dish apeture radio telescope is the Arecibo Radio Telescope in Puerto Rico which is 305 metres.
What is the biggest telescope?
The largest optical telescope in the world today is the Gran Telescopio Canarias (Grand Canary Telescope) in Spain, with an effective diameter of 10.4 meters. The world's largest individual radio telescope is the RATAN-600 in Russia, with the effective diameter of a 600 meter dish.
