Cosmic Microwave Background Articles

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A Poor Man's CMB Primer: Cosmic Acoustics

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 Before decoupling, photons and charged particles…
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A Poor Man's CMB Primer: Bumps on a Blackbody

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 Astronomers Arno Penzias and Robert Wilson discovered…
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A Poor Man's CMB Primer: The Birth of a Cosmic Background Radiation

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 The early universe was hot. So hot, in fact, that…
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A Poor Man's CMB Primer: Orientation of the Universe

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 This is a picture of the cosmic microwave background:Fig…