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cosmic microwave background radiation |
Also found in: Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.06 sec. |
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| This chart includes all known ranges of EMR including: gamma rays, X-rays, ultraviolet light, visible light, infrared, microwaves, radio waves (ULF, VLF, LF, MF, HF, long, short, HAM, VHF, UHF, SHF, EHF), cosmic microwave background radiation and brain waves, all organized by octaves. It wasn't until the mid-1960s that scientists using radio astronomy discovered cosmic microwave background radiation and pushed the Big Bang theory into prominence. Before that, the universe was so hot that there were no neutral atoms, only ions and electrons that trapped the cosmic microwave background radiation. |
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