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Hefner lamp · Vinony

EntityQ904582· pop 7· linked from 9 articles

Hefner lamp

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flame lamp used in photometry

Connections

International Standard Book Number

history of science

luminous intensity

Friedrich von Hefner-Alteneck

Categories

Lighting Photometry

Sources

wikipedia.externallinksexternallink

What links here9 pages

luminous intensity

Friedrich von Hefner-Alteneck

Great Tower Neuwerk

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