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Bertrand Guillaume Carcel, French Inventor

Lithograph of painting depicting Carcel demonstrating the lamp he invented to his sons, by B. De Monvel. The Carcel lamp was invented in 1800 by the clockmaker Bertrand Guillaume Carcel ( 1750-1812) . It consists of a lamp lit with vegetable oil via a pump driven by a clockwork mechanism wound up by a key. The clockwork kept the delivery of oil steady and constant for almost ten hours. The Carcel is a former French unit for measuring the intensity of light. The unit was defined in 1860 as the intensity of a Carcel lamp with standard burner and chimney dimensions. This image has been color-enhanced.
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Title:
Bertrand Guillaume Carcel, French Inventor
Caption:
Lithograph of painting depicting Carcel demonstrating the lamp he invented to his sons, by B. De Monvel. The Carcel lamp was invented in 1800 by the clockmaker Bertrand Guillaume Carcel ( 1750-1812) . It consists of a lamp lit with vegetable oil via a pump driven by a clockwork mechanism wound up by a key. The clockwork kept the delivery of oil steady and constant for almost ten hours. The Carcel is a former French unit for measuring the intensity of light. The unit was defined in 1860 as the intensity of a Carcel lamp with standard burner and chimney dimensions. This image has been color-enhanced.
Credit:
Album / Science Source
Releases:
Model: No - Property: No
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Image size:
3400 x 4878 px | 47.5 MB
Print size:
28.8 x 41.3 cm | 11.3 x 16.3 in (300 dpi)
Keywords: