Carbon filament lamps. From the book Diccionario

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Carbon filament lamps. From the book Diccionario

" Carbon filament lamps. From the book " Diccionario general de Arquitectura e Ingenier� quot; " by Pelayo Clairac y S᥮ z (1879). Engraving. SPAIN. Madrid. Instituto Geol󧩣 o y Minero de Espa񡮦 quot;

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Media ID 8274637

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EDITORS COMMENTS
is an enlightening entry from the "Diccionario general de Arquitectura e Ingeniería" (General Dictionary of Architecture and Engineering) by Pelayo Clairac y Sánchez, published in Madrid by the Instituto Geológico y Minero de España (Geological and Mining Institute of Spain) in 1879. This engraving showcases a selection of carbon filament lamps, a significant innovation in the field of electric lighting at the time. Carbon filament lamps, also known as incandescent lamps, were the first practical electric light sources, preceding the more efficient and longer-lasting tungsten filament lamps developed later by Thomas Edison and other inventors. The lamps depicted in this image are arranged horizontally, their glass bulbs filled with a thin carbon filament that glows when an electric current is passed through it, producing light via incandescence. The color palette of the engraving ranges from warm hues to cool tones, reflecting the various stages of the carbon filament's lifecycle. Initially, the filament glows a bright white, but as it gradually burns out, it turns orange and eventually black. The engraving also highlights the importance of the vacuum pump, which is essential for creating a vacuum inside the bulb to prevent the filament from oxidizing too quickly. This innovative technology revolutionized the way we illuminate our homes and workplaces, paving the way for the development of more advanced electric lighting systems. The "Diccionario general de Arquitectura e Ingeniería" by Pelayo Clairac y Sánchez is an invaluable resource for understanding the technological advancements of the late 19th century, providing a comprehensive overview of various engineering and architectural concepts. This engraving of carbon filament lamps is a testament to the ingenuity and curiosity of the scientific community during this period of rapid technological progress.

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