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Plumb-bob - Wikipedia, the free encyclopedia
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Plumb-bob
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Plumb line)
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This article is about the tool. For the nuclear testing program, see
Operation Plumbbob.
"Plumbline" redirects here. For other uses, see
Plumbline (disambiguation).
A plumb-bob
A plumb-bob or a plummet is a weight, usually with a pointed tip on the bottom, that is suspended from a string and used as a vertical reference line, or plumb-line.
The to ensure that constructions are "
Contents
Etymology
The "plumb" in "plumb-bob" comes from the fact that such tools were originally made of
lead (
Latin plumbum, probably through French
plomb). The adjective "plumb" developed by extension.
Use
Up until the modern age, on most ta...
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