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Olias
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And consequently provides zero resistance?
Link:http://www.nature.com/nsu/040112/040112-7.html
Link:http://www.nature.com/nsu/040112/040112-7.html
Loren Booda said:How about neutrino resonances? (Do you mean "opaque" or "zero resistance"?)
Loren Booda said:"Coldest" waves? Gravitational waves from inflation.
The Thermal Background of the Universe, also known as the Cosmic Microwave Background (CMB), is a type of electromagnetic radiation that fills the entire universe. It is the remnant heat from the Big Bang and has a nearly uniform temperature of 2.7 Kelvin (or -270.45 degrees Celsius).
This means that certain wavelengths of electromagnetic radiation are unable to pass through the Thermal Background of the Universe. This is because the particles in the CMB absorb and scatter these waves, making them unable to travel through the universe.
The Thermal Background is opaque for high-frequency waves, such as gamma rays and X-rays. It is also opaque for low-frequency radio waves. However, some wavelengths, such as visible light, are able to pass through the CMB with minimal absorption and scattering.
This is due to the interaction between the CMB and the particles in the early universe. As the universe expanded and cooled, the particles in the CMB became less energetic and were able to absorb and scatter certain wavelengths of radiation. This process is known as photon decoupling.
The opacity of the Thermal Background for certain waves provides valuable insight into the early universe and its evolution. It confirms the existence of the Big Bang and allows scientists to study the properties of the universe at its infancy. It also helps in understanding the formation of structures such as galaxies and galaxy clusters.