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List view record 1: Radio Astronomy. Episode 5, Radio Telescopes and How They Work [efilm]List view anchor tag for record 1: Radio Astronomy. Episode 5, Radio Telescopes and How They Work [efilm]
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Radio Astronomy. Episode 5, Radio Telescopes and How They Work [efilm]

2019
Radio telescopes are so large because radio waves contain such a small amount of energy. For example, the signal from a standard cell phone measured one kilometer away is five million billion times stronger than the radio signals received from a bright quasar. Learn how each of these fascinating ...
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