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A ruler, sometimes called a rule or line gauge, is an instrument used in geometry, technical ... Plastics have also been used since they were invented; they can be molded with length markings instea...

Who invented the ruler? - Ask.com


The first known rulers appeared to have markings that had similar meanings to our currently used imperial and metric systems. The modern 12-inch ruler used ...

Origins of Measurements - Fact Monster


Today it is 12 inches, the length of the average man's foot. ... In the 12th century, King Henry I of England fixed the yard as the distance from his nose to the ...

CM Designs, Inc. - Home of the Add-A-Quarter - Products


CM Designs, Inc. is the home of the Add-A-Quarter quilting tool created by Carolyn McCormick. ... 6 inch - $7.49 12 inch - $10.49. View LargerOrder Form.

12 Revealing Facts about Rulers | Quilting Sewing Creating


Apr 22, 2015 ... Invented - Many civilizations used various straightedged measuring tools ... a thumb for an inch and the length of the middle finger to the elbow ...

Length - Math Solutions


12-inch rulers, 1 per pair of students. ` color tiles, 6 ... them imagine that rulers have not been invented yet, and there is no such thing as inches or yards or ...

A Source Book for Rule Collectors


Apr 22, 2004 ... It is usually 6, 12 or 24 inches long and performs only the first two functions. ... paper, which also serves the function of preventing ink from spreading under the ruler. .... The sector was invented by Thomas Hood in 1597, and ...

Folding Ruler: Rules, Tapes | eBay


Shop huge inventory of Metal Folding Ruler, Vintage Folding Ruler, Wooden Folding Ruler and ... BOXWOOD & BRASS No 32 FOLDING RULER Brass Caliper 12 INCH #2 ... Anton Ullrich invented the folding ruler in 1851, and carpenters and ...

4 Ways to Use a Ruler - wikiHow


The yardstick is a long ruler (3 feet long), and a measuring tape is yet another type of... ... Most student rulers can measure up to 12 inches at a time. You will ...

Imperial Measures of Length - Edkins Family Index Page


inch, in or ", 2.54 cm, 12 inches = 1 foot, The inch was originally the width of a thumb. ... In that year the British government created a standard master yard in a length of bronze, marked ... School rulers in Britain are usually a foot long (30 cm) .

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History of Rulers @ Super Beefy


Jul 25, 2014 ... No ruler or measuring device is completely accurate; in fact, ... The ancient Greek cubit was about 20.7 inches, but another unit of measurement, the foot, was more widely used. The Greek .... 2016-04-26T12:20:33+00:00. KJ.

An Essay on The Ruler: What is Measurement?


Consider the ubiquitous 12 inch ruler (or its multiples, the yardstick, tape ... It contains a history of ideas and concepts that are fundamental to measurement.

Antique Rules and Rulers - Collector Information | Collectors Weekly


By the 17th century, rulers were marked in inches, with smaller, fractional ... Josh and Cam Larios have created this site enabling people to upload and 'tag' ...