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5 Terms

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reasons why Cosmic Microwave Background Radiation supports the Big Bang Theory

  • it is pervasive throughout space

  • it is the dominant source of radiation in the universe

  • it is very uniform throughout the Universe

  • It is isotropic

  • CMBR is thought to be the “afterglow” of the Big Bang, cooled to a faint whisper in the microwave region

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doppler effect

change in the observed frequency of a wave, when the source or observer is moving, causing shifts in wavelengths of sound and light

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light from objects moving away from us is shifted

to longer wavelengths (redshift)

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redshift

the change in wavelength divided by the emitted wavelength

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