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The Corner Reflector

Authors: Whitney S. Harris;

The Corner Reflector

Abstract

In July of 1969. the Apollo astronauts placed an array of corner reflectors on the moon. The array was used to reflect an earth-originating pulsed laser beam back to earth. The total travel time of a pulse (about 2.5 seconds) yielded a more accurate determination (to within 6 inches) of the distance from the earth to the moon (approximate mean value, 239000 miles).

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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