All Radio Telescopes form images of astronomical objects using a frequency of the electromagnetic spectrum (radio waves) that human eyes can not detect. This tells us things about these regions of space that we cannot learn in other ways.
how long was the first radio telescope
Grote Reber, not Grote Weber, is credited with building the first radio telescope in 1937. He used a parabolic antenna to observe radio waves from outer space, laying the foundation for modern radio astronomy.
No, Albert Einstein did not develop the first radio telescope. The first radio telescope was built by Karl Jansky in the early 1930s. Jansky's work laid the foundation for radio astronomy, which was further advanced by others, including Grote Reber, who constructed the first dedicated radio telescope in 1937. Einstein’s contributions were primarily in theoretical physics, particularly in the realms of relativity and quantum mechanics.
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The first radio antenna used to identify an astronomical radio source was one built by Karl Jansky, an engineer with Bell Telephone Laboratories, in 1931. Jansky was assigned the job of identifying sources of static that might interfere with radio telephone service.
radio telescope detects radio waves and a light telescope views light waves.
Radio Telescope Arrays
A radio telescope detects light in the form of radio waves and a refracting telescope detects light in the visible wavelengths
Nothing on that list is used in a radio telescope.
The Arecibo radio telescope is the largest radiotelescope in the world. It is suspended in a valley in the Puerto Rican mountains.
Stockert Radio Telescope was created in 1956.
Karl Jansky first discovered astronomical radio sources, but I believe it was Grote Reber who first mapped the radio emissions of the sky using a radio telescope in his backyard.