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Bertrand Guillaume Carcel, French Inventor

Bertrand Guillaume Carcel, French Inventor
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Titel:
Bertrand Guillaume Carcel, French Inventor
Untertitel: Siehe automatische Übersetzung
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.
Bildnachweis:
Album / Science Source
Freigaben (Releases):
? Modellfreigabe: Nein - ? Eigentumsfreigabe: Nein
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Bildgröße:
3400 x 4878 px | 47.5 MB
Druckgröße:
28.8 x 41.3 cm | 11.3 x 16.3 in (300 dpi)
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