Subject:
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Re: Evolution of Earth and moon (was: Couldn't resist)
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Newsgroups:
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lugnet.space, lugnet.off-topic.geek
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Date:
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Thu, 12 Jul 2001 00:32:35 GMT
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Viewed:
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8819 times
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In lugnet.space, Larry Pieniazek writes:
>
> Would there be any difference in the accuracy of laser vs. radar? I'm not
> enough of an EE geek to know, but thought "no" because they're just
> different wavelengths of the same thing, right?
>
> Or does the wavelength difference (it IS many orders of magnitude in
> difference) matter?
Isn't the theory behind rainbows (or light spectrums in general)
that the different wavelengths refact by differing amounts, and
so white light is "spread" into a spectrum of colours? If that's
the case then radar and laser energy would refract by differing amounts,
meaning one would end up being more likely to deviate from a
straight line in our atmosphere, and add errors to the measurement.
It would also presumably scatter more so the "signal" loses "power"
more.
KDJ
_______________________________________
LUGNETer #203, Windsor, Ontario, Canada
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