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    Titan in the Playground
     
    Yora's Avatar

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    Default Wavelength of the Cosmic Microwave Background?

    It must have one, but I am unable to find out how long it is. Or even its frequency in hz.
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    georgie_leech's Avatar

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    Default Re: Wavelength of the Cosmic Microwave Background?

    My Finals are done so I'm in a strict "No calculations" phase, but you could plug the frequencies on this chart into our good friend λf=c.
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    Excession's Avatar

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    Default Re: Wavelength of the Cosmic Microwave Background?

    From Wikipedia:

    "The CMB has a thermal black body spectrum at a temperature of 2.725480.00057 K. The spectral radiance dEν/dν peaks at 160.23 GHz, in the microwave range of frequencies."

    It's a black body curve, not a single frequency, but the peak is at 160 GHz.

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    gomipile's Avatar

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    Default Re: Wavelength of the Cosmic Microwave Background?

    So, 1.871 millimeters.
    Quote Originally Posted by Harnel View Post
    where is the atropal? and does it have a listed LA?

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    Yora's Avatar

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    Default Re: Wavelength of the Cosmic Microwave Background?

    That's still really short, but it is a distance we can actually see.
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    Default Re: Wavelength of the Cosmic Microwave Background?

    Technically yes, although in terms of radiomagnetic waves Im not sure if "the wavelength is something I could see if it was a physical object" is the most useful criterium for how relatable something is.
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    Default Re: Wavelength of the Cosmic Microwave Background?

    Quote Originally Posted by Lvl 2 Expert View Post
    Technically yes, although in terms of radiomagnetic waves Im not sure if "the wavelength is something I could see if it was a physical object" is the most useful criterium for how relatable something is.
    Well, it is when you're building antennas by hand, or building reflectors or Faraday cages for that wavelength. That's all I've got off the top of my head, though.
    Quote Originally Posted by Harnel View Post
    where is the atropal? and does it have a listed LA?

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