You can still hear the Big Bang on any radio

The ‘echo of the Big Bang’ is not audible on a normal radio. Cosmic microwave background radiation peaks at a frequency of 160GHz, which corresponds to a wavelength of 1mm. By comparison, the VHF band has a frequency of 100MHz and a wavelength of 3m. Ordinary radio aerials are not at all suitable for receiving the Big Bang’s residual radiation.

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