unit of solar radiation
"The solar panel's efficiency rating was measured in langleys to determine how much energy it could absorb from direct sunlight."
United States astronomer and aviation pioneer who invented the bolometer and contributed to the design of early aircraft (1834-1906)
"Langley's invention of the bolometer revolutionized how scientists measure infrared radiation, even though his dream of powered flight was initially overshadowed by tragedy."
A unit of heat transmission in the CGS system of units. It is equivalent to 41,840 J/m² in SI units. Symbol: Ly.
"The physicist calculated that the solar panel absorbed exactly five langleys of energy during its brief exposure to direct sunlight."
A surname.
"The Langley family has lived in that historic house for three generations."