Redshift and the Big Bang GCSE Physics

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How does the redshift prove that the universe is expanding? • There are three things that we know: • (1) Galaxies are travelling away from each other (receding). • (2) The entire universe is expanding from its initial singularity. • (3) The farther away a galaxy is from us, the faster it is receding. • • • • • • #physics #gcse #physicsrevision #gcsephysics • Music credit: • Song: Dipcrusher - Islands (Vlog No Copyright Music) • Music provided by Vlog No Copyright Music. • Video Link:    • Dipcrusher - Islands (Vlog No Copyrig...  ​

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