Compass (Mathematical)

Draw the best circles with compasses!

  • Compasses are stationery items that are primarily used to draw accurate circles and curves.
  • Compasses have previously been used to draw accurate diagrams, although in modern times, computer technology is more often used.
  • Today, compasses are often used in teaching, particularly in geometry subjects in mathematics.
  • Compasses are typically produced from materials of metal and plastic.
  • Compasses generally have two small rods, one with a point and one with a pencil holder, which are connected with a hinge, that gives the ability to change the angle of the rods.

Drawing compass, Metal, Silver, One, Single, Self, Mathematics, Geometry, Stationary, Ten Random Facts

  • Compasses are used to draw circles by placing the point and the pencil on the paper, pivoting it on the point, and putting pressure on the pencil.
  • Sizes of circles and curves can be altered by adjusting the angle of the compass.
  • Sometimes a compass has two pointed ends, and can be used as a ruler replacement, as a measurement tool particularly for maps.
  • Compasses are sometimes used as a symbol of accuracy and judgement.
  • It is believed the Greek mathematician, Euclid, from 300 BC, made use of a type of compass, and the Italian mathematician, Galileo, in the late 1500s or early 1600s, designed a compass, and sold them with an accompanying book.
Bibliography:
Compass (Drafting), 2013, Wikipedia, http://en.wikipedia.org/wiki/Compass_(drafting)

Amazon:    
                     Compass Drawings (Book)

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