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 ...
Dec 13, 2011 ... 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. Ruler.
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
... into signatory countries. The use of metric weights and measures in trade only
became lawful in Britain in 1897. Scientist measuring wavelength with a ruler ...
Answer The ruler was first invented by a Greek egg Theodorus of Crete.
Theodorus is also credited for inventing the lathe, bronze casting, the level,
Aug 1, 2013 ... If you're still using a basic ruler--the kind that's a stick with notches on it--allow us
to introduce you to the future, where our rulers will be crazy ...
Date: 08/21/2006 at 20:31:23 From: Doctor Rick Subject: Re: Why is ruler called a
ruler Hi, David. Do you sometimes look at a word you see ...
31-15 This invention relates to a butter ruler for measuring desired quantities of
butter as in a home kitchen and for H cutting the same from the regular quarter ...