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Why would radio astronomers build identical radio telescopes in different places around the world?
Wiki User
∙ 15y ago
There are at least two reasons why identical radio telescopes may be built. A mundane reason would to save money by reusing the same design. But the reason why most identical systems are built (not to say that saving money by reusing the design isn't still a factor in these cases) is to construct a "very long baseline interferometer", a type of multiple telescope system that uses properties of electromagnetic radiation (wave interference) to simulate telescopes with much larger apertures. This method attains the angular resolution of the larger telescope, but not the signal sensitivity.
Wiki User
∙ 15y ago
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How long has the telescope been around?
Telescopes have been around since before the 1500's.
What percent are people around the world genetically identical?
Considering a Chimp's DNA is 99% identical to a humans I would think that people around the world are 99.99999% genetically identical
What do astronomers think that the areas around blackholes give off?
Astronomers think that the areas around black holes suck everything in like when a tub drains. But black holes are large amounts of matter that is packed into a small area.
What did ancient Indian astronomers recognize about earth?
round body and moved around the Sun
How do you observe the universe?
If this question has any answer at all, it is probably that interest in space is absolutely inevitable, given the imagination, curiosity and exploring nature of human kind. There are very few people (if any) who have never looked up at the sky and wondered about what it is, how far it goes, and whether or not there may be others out there who are looking up at them.
What are X-ray and gamma ray telescopes used for?
X-ray and gamma ray telescopes are used to give us "alternate" views of objects in the universe. It is extremely helpful to see all of the different wavelengths of electromagnetic energies give off by objects to better understand what they are and how to classify them for further study. x-rays can also cause cancer whilst looking through them also a lamborghini can see more into the future than xray and gamma ray telescopes
What happens to the junk thrown by astronomers in the space station and space shuttles Does it stay afloat?
It usually stays in orbit around the earth, and poses a serious threat to all orbiting satellites. Even a small object can destroy things at high speed. Most satellites can move around projected paths of junk thrown in space. Some astronomers use radio telescopes to track "Space Junk".
When were telescopes first used?
Around 1608.
Where are telescopes location?
all around the world
What is the orgin for the word telescope?
Telescopes have been around since 1608, and they have been called "telescopes" the entire time. There is no original word.
How much do astronomers get paid in a year?
around $95,000
How long has the telescope been around?
Telescopes have been around since before the 1500's.
What have scientists learned from telescopes?
They have learned that Earth revolves around the Sun.
What percent are people around the world genetically identical?
Considering a Chimp's DNA is 99% identical to a humans I would think that people around the world are 99.99999% genetically identical
Why are astronomers important?
They help us understand the universe around us.
What is the difference between modern telescopes and galileo's telescope?
Galileo's telescope is what is called a refractory visible light telescope. It takes visible light and uses lenses to condense a lot of light down to what will fit into your eye. It was very rudimentary and could not see very much detail. Today, there are still refractory visible light telescopes. In fact, these are used by amateur astronomers to capture excellent pictures of the universe around us. They are limited in their aperture however (the size of the opening pointed toward the stars). There are many other kinds of telescopes now also. Reflecting telescopes can be much bigger. Currently, the largest are the Keck telescopes in Hawaii where there are two that have an aperture of 10 meters, where as Galileo's was only 10-25 mm. Besides visible light, we now use telescopes to see all the wavelengths of light, from radio waves through microwaves, infrared, ultraviolet, X-ray and gamma rays.
What did the earliest astronomers learn about the universe?
That the Earth and all the other planets rotate around the Sun... and not around the Earth........
