A ruler, sometimes called a rule or line gauge, is an instrument used in geometry,
technical .... Anton Ullrich invented the folding ruler in 1851. Frank Hunt later ...
The invention of the ruler dates back to ancient civilizations, such as the Greeks
and Egyptians. Used to make measurements in a straight line, the first excavated
www.ask.com/youtube?q=Who Invented the Ruler?&v=fMECPQ3Ae94
Jan 3, 2009 ... The ruler was invented by different civilizations of different time periods. Discover
the origin of the ruler with tips from a mathematics instructor in ...
www.ask.com/youtube?q=Who Invented the Ruler?&v=zgkketAEaEk
Jun 7, 2009 ... The ruler was invented in the 16th century by William Bedwell, and it is used for
drawing straight lines and taking measurements. Use a ruler for ...
The ruler was invented by different civilizations of different time periods. Discover
the origin of the ruler with tips from a mathematics instructor in this free video ...
... the Ruler invented? Prior to 1500 B.C, the Indus Valley Civilization used ruler
made of ivory. In the year 1851, the folding ruler was invented by Anton Ullrich.
There are several ways to get something very straight. The surface of a still body
of water, for example, will be almost perfectly level. A length of string pulled tight ...
Nov 21, 2013 ... Machines makes machines. And other machines make those machines.
Eventually it must come down to a single tool. But what was it and how ...
Flexible Ruler Invented by Frank G. Hunt. Description: Frank G. Hunt of Buffalo,
N.Y., designed this flexible steel rule for drawing straight lines on curved surfaces
Inventor. Anonimo fiorentino. Francesco di Giorgio Martini.