Langley unit
The langley (Ly) is an international unit used to measure solar radiation (or insolation). The unit was named after Samuel Pierpont Langley (1834-1906) in 1947.
Related Topics:
Solar radiation - Insolation - Samuel Pierpont Langley - 1834 - 1906 - 1947
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Definition: 1 { m Ly} = rac{1 { m cal}}{{ m cm}^2}.
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