Plumbline
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(Redirected from Plumb line)
Originally, a plumb line, plumb-line, or plumbline was a string with a lead (Latin plumbum) weight called a plumb-bob at one end, used to provide a vertical reference line. In geodesy it means a line orthogonal to the geoid (which isn't the line a real plumb line takes, because of the earth's rotation). Other meanings include:
- The Plumbline, a joke newspaper produced by the McMaster Engineering Society
- Plumbline (band), a Christian rock band based out of Los Angeles, CA on the GoDigital Records label
See also: Vertical direction
ja:鉛直
