Langley(redirected from langleys)
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Samuel Pierpont. 1834--1906, US astronomer and physicist: invented the bolometer (1878) and pioneered the construction of heavier-than-air flying machines
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A unit of energy per unit area commonly employed in radiation theory; equal to 1 gram-calorie per square centimeter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.