Langley

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Langley

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A unit of energy per unit area, equal to 1 gram-calorie per square centimeter, commonly employed in radiation theory. </dd>
The langley is almost always used, in conjunction with some time unit, to express a flux density; but the time unit has been purposely separated in order that it may be chosen in a manner convenient to each particular problem. The unit is named in honor of the American scientist, Samuel P. Langley (1834-1906), who made many contributions to the knowledge of solar radiation. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use