Langley (unit)
Jump to navigation
Jump to search
Template:Refimprove Template:Infobox unit
The langley (Ly) is a unit of heat transmission, especially used to express the rate of solar radiation (or insolation) received by the earth. The unit was proposed by Franz Linke in 1942[1] and named after Samuel Langley (1834–1906) in 1947.
Definition
One langley is
- 1 thermochemical calorie per square centimetre,[2]
- 41 840 J/m2 (joules per square metre)[3]