I studied ancient history
etymology
The word anonymous derives from Greek anonymos, from an- (without) and onyma (onoma: name).
The word "it" comes from the Old English word "hit" which means the same thing as "it" (a neuter third person singular pronoun). The history of the word "hit" is too long and involved to get into now.
My history class is currently focused on various monoliths.
The spelling for the word describing something that is vertically straight is "plumb."
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.
Linea can mean a string, a cord, a fishing-line, a plumb-line, a finishing line in a race.
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 inventor is lost in history .
Use of a plumb bob a level used on plumb rather then horizontal
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.
Use a plumb line.
They both come from the Latin word plombium which means the element Lead. (The symbol for the element is Pb which comes from Plombium) Water pipes used to be made of lead, so a person who attended to water and sewer pipes was a plumber who looked after the plumbing. An instrument for measuring whether something was vertical consisted of a line with a lead weight at the end, called a plumb weight, and the apparatus was called a plumb line or plumb rule. A vertical structure which was proven to be vertical by such an instrument was called "plumb"
Plumb line testThis is a quick visual check to see if the spine is straight. In scoliosis, the plumb line will fall to the left or right of the spine instead of through the middle of the buttocks. Plumb line dropped from the prominent vertebra of C7 (vertebra prominence) measures the decompensation of the thorax over the pelvis. The distance from the vertical plumb line to the gluteal cleft is measured in centimeter and is recorded along with the direction of deviation. If there is cervical or cervico-thoracic curve, the plumb should fall from the occipital protuberance (inion).
A plumb-line can be made of steel, metal, gold or wood
The plumb line is a vertical straight line.