Posts

cmbprimer4

A Poor Man's CMB Primer. Part 4: Cosmic Acoustics

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  Before decoupling, photons and charged particles…
blackbody

A Poor Man's CMB Primer. Part 3: Bumps on a Blackbody

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  Astronomers Arno Penzias and Robert Wilson discovered…
birthcmb

A Poor Man's CMB Primer. Part 2: The Birth of a Cosmic Background Radiation

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  The early universe was hot. So hot, in fact, that…
cmb

A Poor Man's CMB Primer. Part 1: Orientation

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