carcel

Definitions

1. A surname
2. A former unit to measure the intensity of light, approximately 9.74 candelas.
   historical

Equivalents

Examples

“Desroziers in a series of experiments obtained as much as 250 carcel spherical luminous value per horse-power; this characteristic is one likely to be of great value in electric lighting by incandescence of high intensity.”

“When experimenting in Paris with a No. 3 lamp in a vertical direction, it showed a consumption of 34.6 liters (1.2 cubic feet) per carcel obtained.”

“In all systems of lighting, save⟳ electricity, the unit of light⟳ is the carcel.”

CEFR level