Samuel Pierpont Langley Reference Libraries
The bolometer, invented in 1878 by Samuel Pierpont Langley, measures the energy of incident electromagnetic radiation. It consists of an absorptive element connected to a heat sink through a thermal link. The absortive element raises its temperature above that of the heat sink when radiation impinges on it. The higher the energy the higher the temperature rises. Old bolometers used metals while...
- A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
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