To establish a plumb line. Vertical line. Basic tool that lets you do everything else. With a plumb bob and something to measure with you can build anything.
The plumb bob's inventor is lost to history...the name comes from the corruption of the Latin word for lead: Plumbum. Bob has nothing to do with it.
The plumb bob has a long history, with early versions dating back to ancient Egypt and Greece. However, its modern design, with a pointed weight suspended on a string, is believed to have been developed in the 16th century. It became an essential tool for builders, surveyors, and architects for ensuring vertical alignment.
When an object is plumb, it means that it is perfectly vertical and aligned with the force of gravity. This is typically determined using a plumb bob or a level to ensure that the object is straight up and down.
In physics, a plumb bob is commonly used to establish a vertical reference line, such as when determining the center of gravity of an object or setting up a level surface for experiments. It is also used in experiments involving gravity, pendulums, and to measure the acceleration due to gravity. Additionally, plumb bobs help in conducting experiments related to mechanics and structural analysis.
The center of gravity using the plumb line method is determined by suspending an object from different points and allowing it to come to rest. The intersection of the lines traced by the plumb bob at each resting position indicates the center of gravity of the object. This method is commonly used to locate the center of gravity of irregularly shaped objects or structures.
Use of a plumb bob a level used on plumb rather then horizontal
Your dads baldhead
It is not known who invented the plumb-line or plumb-bob; there is evidence that it has been in use since biblical times and archaeologists haveÊunearthed what they think are plumb gaugingÊtoolsÊin Ancient Egypt.
The plumb bob is useful in establishing vertical for a wall in construction or a doorjamb when hanging a door. It can indicate whether a flue is running true vertical or veering off plumb. 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. It is essentially the vertical equivalent of a water level.
To use a plumb bob to find the correct fixing point, the bob must be suspended from an area above the desired point. Once it has stopped swinging, one can mark their preferred point against the line. This will ensure a straight line.
The plumb bob's inventor is lost to history...the name comes from the corruption of the Latin word for lead: Plumbum. Bob has nothing to do with it.
I THINK you use a plumb-bob
Next to the level, beneath the plumb, Bob.
To show a vertical line
Yes it does! :)
To plumb a tapered pole, use a plumb bob at various locations along the length of the pole to ensure it is perfectly vertical. Make adjustments as needed by inserting shims or spacers to maintain alignment. Repeat this process until the entire length of the pole is properly plumbed.
The phrase "plumb forgot" likely originated from the use of the word "plumb" as an adverb meaning "completely" or "absolutely." In this context, "plumb" emphasizes the degree to which something is forgotten. The word "plumb" in this sense dates back to the 16th century, while the specific phrase "plumb forgot" likely emerged later as a colloquial expression to convey total forgetfulness.