These examples are programmatically compiled from various online sources to illustrate current usage of the word 'plumb bob.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. 2018 Cake pans, coffee pots, cash registers, and a white ElectroChef stove appeared amid scientific instruments such as steel calipers and a brass plumb bob. David Grossman, Popular Mechanics, 17 Jan. Rhett Allain, WIRED, Accurate to within 1/4 of an inch per 100 feet of range, the kit comes with a tripod with quick-adjust legs, a heavy-duty 8-foot aluminum grade rod (feet-inches-eighths), a plumb bob, and a kit box to safeguard the laser during transport. 2019 The plumb bob will hang at the angle reading for your latitude. Andrew Tallon, National Geographic, 16 Apr. To ensure that the frame of the wall is perfectly vertical from the ceiling to the floor, a plumb bob can be.
If a room is being split into two or more parts, walls have to be built. 2020 For a long time, the tools used to measure medieval buildings were nearly as old as the buildings themselves: plumb bobs, string, rulers, and pencils. Using a plumb bob and marking several plumb lines across the length of a wall will ensure that wallpaper is totally vertical and even. The vector sum of W and F results in a tension T in the pendulum string. It is deflected through a small angle due to its attraction F towards P and its weight W directed towards the Earth. It is used in carpentry to check if things are level on a vertical plane. A plumb-bob of mass m is situated a distance d from P, the centre of mass of a mountain of mass MM and density M. Ryan D'agostino, Popular Mechanics, 24 Oct. A plumb bob is a heavy, pointed weight attached to a long piece of string.
2022 For holes deeper than three feet, drop a plumb bob (a conical weight attached to a string) into it to give you some sense whether the hole itself is plumb and uniformly shaped. PLUMB BOB meaning: 1 : a usually small, heavy object that is used to make a string or rope hang straight the heavy object that is part of a plumb line. Bring the string all the way down and let go of the weight. Use a nail or a screw to secure the string of the plumb bob to the uppermost.
A PLUMB BOB HOW TO
Jennifer Ouellette, Ars Technica, Where many competitors use surveying equipment that’s accurate to within a thousandth of a degree to orient their robots on startup, Coordinated often relies on a plumb bob (cost: a few bucks). A Complete History of the Plumb Bob and How to Use It 1. A plumb bob is a weight with a pointed tip on the bottom thats hung from a string, and its used to establish a vertical reference (called a plumb line).
Recent Examples on the Web Possible uses included: a plumb bob or a loom weight, a liquid sprinkler, a fire starter, a lamp, a smoking pipe, or parts of an apparatus for distillation.
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