How come the white and black snow we see sometimes on TV is a result of the Big Bang? (the cosmic radiation)
I meant the random dot pixel pattern of static in TVs, when there is no signal.
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This is because a significant amount of the relic radiation of the big bang lies in the radio frequency range used to transmit TV picture information, on old-style analog television sets. That radiation is picked up by the TV's antenna and presented to its circuitry as if it were part of the picture signal. Since the big bang signal is random, the image of it that your TV produces consists of random dark and light spots that jump around in random positions on the screen, which radio engineers refer to as "snow" because when superimposed on a regular TV transmission, it appears as if it is snowing in the image.