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>> Now, what kind of a picture you could make with a "light" having a 2
>> Km wavelength, I have no idea.
>
> http://universe.chimons.org/contents/Radio.jpg
Well, yes, they have various radio telescopes. But I wonder... these
images are in colour, but does the colour actually represent different
wavelengths? Or is it just the intensity of radiation being recieved?
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