Why is it called a plumb bob?
Category:
sports
golf
The "plumb" in "plumb-bob" comes from the fact that such tools were originally made of lead (Latin: plumbum, French: plomb). The adjective "plumb" developed by extension, as did the noun "aplomb," from the notion of "standing upright."
Accordingly, who invented the plumb bob?
Egyptians
Secondly, how does plumb bob work?
Plumb bobbing is a method used on the putting green to find which way a putt will break. Plumb bobbing is when you squat down behind the ball with your putter handing in front of your eyes, and read the line of the putt based on how your putter hangs. When you watch the pros, they look at a putt from all angles.
When something is plumb, it means it's straight up and down. If a post installed in flat ground is leaning in any direction, it's out of plumb. If it's at a 90-degree angle to the ground on all sides, it's plumb.