the big bang theory

the big bang theory

Radio Astronomy - History of Radio Waves, Microwaves and Infrared Waves

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Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. The initial detection of radio waves from an astronomical object was made in the 1930s, when Karl Jansky observed radiation coming from the Milky Way. Subsequent observations have identified a number of different sources of radio emission. These include stars and galaxies, as well as entirely new classes of objects, such as radio galaxies, quasars, pulsars, and masers. The discovery of the cosmic microwave background radiation, regarded as evidence for the Big Bang theory, was made through radio astronomy. Radio astronomy is conducted using large radio antennas referred to as radio telescopes, that are either used singularly, or with multiple linked telescopes utilizing the techniques of radio interferometry and aperture synthesis. The use of interferometry allows radio astronomy to achieve high angular resolution, as the resolving power of an interferometer is set by the distance between its components, rather than the size of its components., Enjoy the show, Part 1 - Stargazer Nation Facebook Page - https://www.facebook.com/StargazerNation On Twitter - https://twitter.com/STARGAZERNATION On Tumblr: http://stargazernation.tumblr.com/ Google Community Group - https://plus.google.com/u/0/b/112543437330458039827/communities/117621785057202253470 Blog - http://stargazernation.blogspot.co.uk/ On Pinterest: http://www.pinterest.com/Stargazernation/