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History of Radio Astronomy

Learn about the early history of radio astronomy, starting with Karl Jansky's work in 1932. Discover how Jansky built the world's first radio telescope to track radio emissions from celestial bodies.

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Questions and Answers

What is the name of the method that combines signals from multiple telescopes electronically to produce high-resolution images?

Interferometry

What is the primary advantage of using interferometry in radio astronomy?

Improved image resolution

What did Karl Jansky discover using his radio antenna?

Radio emissions that moved with celestial bodies like the Sun, planets, and stars

What technology enables radio astronomers to connect their telescopes wirelessly for high-resolution imaging?

<p>Very long baseline interferometry (VLBI)</p> Signup and view all the answers

What is a common characteristic of radio telescopes mentioned in the text?

<p>They have the ability to work through clouds.</p> Signup and view all the answers

How did Grote Reber contribute to the field of radio astronomy?

<p>By identifying celestial objects emitting strong radio waves</p> Signup and view all the answers

Which radio telescope array in New Mexico is known for its exceptional accuracy and size, allowing for detailed astronomical observations?

<p>Very Large Array (VLA)</p> Signup and view all the answers

What was a notable feature of the Lovell radio telescope mentioned in the text?

<p>It was built in Britain in 1957.</p> Signup and view all the answers

What is a similarity between listening to stars through a radio telescope and tuning a radio between channels?

<p>Both involve detecting strong radio waves from bright radio objects</p> Signup and view all the answers

Which statement best describes the difference between resolving power in optical telescopes and radio telescopes?

<p>Optical telescopes have better resolving power as they can image finer details.</p> Signup and view all the answers

What did the computer do with the detected radio waves in the text?

<p>Converted their strength to colors for image production.</p> Signup and view all the answers

Why are rainy places like Britain mentioned to be fine for radio telescopes?

<p>Radio telescopes have the ability to work effectively in rainy conditions.</p> Signup and view all the answers

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