10 Best compasses of 2019

  • PROFESSIONAL GRADE FOR SURVIVAL, CAMPING, & EMERGENCY...
  • Floating compass dial with 360 degree scale. And made of...
  • HEAVY-DUTY, RUGGED, & DURABLE CONSTRUCTION - This...
  • UPSTONE
  • Made of copper, acrylic mirror surface.
  • Flip top lid, watch style, luminous, easy to read in night.
  • Dimention: 1.88" D x 0.51" H. Weight: 1.8oz.
  • Lightweight, versatile compass made of durable, clear,...
  • Employs Suunto's two-zone system for reliable readings in...
  • Fixed declination correction scale, jewel bearing, and...
  • Lightweight, versatile compass made of durable, clear,...
  • Employs Suunto's two-zone system for reliable readings in...
  • Fixed declination correction scale, jewel bearing, and...
  • Liquid-filled jewel bearing design. Rotating bezel displays...
  • Balanced for northern hemisphere. Assists with underwater...
  • Measures 1.18 in. by 0.94 in. by 0.43 in.. Weighs 0.18 oz.....
  • Made of copper, acrylic mirror surface.
  • Flip top lid, watch style, luminous, easy to read in night.
  • Dimention: 1.88" D x 0.51" H. Weight: 1.8oz.
  • Made of copper, acrylic mirror surface.
  • Flip top lid, watch style, luminous, easy to read in night.
  • Dimention: 1.88" D x 0.51" H. Weight: 1.8oz.
  • Thermo-elastic liquid-filled capsule with floating dial
  • Great for camping, scouting, hiking, and more
  • Tripod screw hole on base, adjustable diopter sighting lens,...
  • High grade steel needle with jewel bearing
  • Balanced for northern hemisphere
  • Fixed declination correction scale

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Circle counselor

Of the compasses represents an indispensable tool in many areas that is used on a daily basis. So finds the compasses as a calculation tool application both in school and in mathematics studies, as well as in the profession of a technical draftsman. It has a long tradition and is offered in many different versions today.

Circle – Historical

As a mathematical instrument the compasses in the ancient. In addition to the ruler, he presented the only permitted aid for designing geometric objects. For only these two instruments corresponded to the Platonic ideals of circle and line. To date, the compasses next to the ruler, the only tool to perform geometric drawing operations.
The first compasses Collections were created in the 16th century. These were particularly valuable and elaborate models. The production of circles then flourished in the 18th century. Here, famous instrument makers presented various compass models. Among them, in particular, the manufacturers Adam from London, Butterfield from Paris and Brander from Augsburg to mention. The industrial production of circles, however, finally experienced their full upswing in Germany at the end of the 19th century. Especially the manufacturers Reiss, Ditzingen, Haff, Richter, Riefler and Boden stood out with their models.

Circle – General

A compass consists of two equally long metal rods, which are connected at the end. One of these bars has a tip at its end. This serves to fix the circle on the base. By fixing on the base a Kreismittelpunt is determined. The radius is set with the distance of the second rod to the first. While the tip is at the end of the first rod, the end of the second rod contains a device for drawing. Depending on the applied base, this may be an ink or a pencil lead. The ink is usually used on parchment, and that in technical drawings. For the paper as a base, the pencil lead is used in most cases. If the compass is used on the leather, a chalk is usually used for drawing. Metallic documents, however, require a scriber. Even for one school boardThere are executions of the circle. These are large circles whose legs are equipped with flat rubber feet to attach to the board.

Circle variants

The theory of ideas divides the circles into collapsing and non-collapsing circles. Here, under a collapsing circle a mental Toolunderstood, but with which you can not take a radius to transfer this to the other center, as this would snap when lifted.
Non-collapsing circles are real existing circles and are subdivided into dividers, fallunullets, pole circles and an improvised circle.
Dividers have one tip per leg. They do not serve to draw but to grasp lengths along curves. They come in navigation for a map, such as the sea, for use as well as for scoring radial lines in a natural stone, which is processed by stonemasons. A large field compass for measuring outdoor distances is called field compass.
Falling circles are used to draw very small circles, which are about one millimeter in diameter.
Columns are used to draw large circles with a diameter of up to 60 cm in radius. The two points are located on a metal bar and can be moved in parallel.
An improvised circle has a needle to set the center and a string to determine the radius. The ends are wrapped around the pin and the needle.
All these circles are today characterized by an excellent technique that allows them to work with the utmost precision. The compasses used in the school are offered in various deisgns and in different colors. With these circuits, you can even purchase quick-release compasses to further simplify their operation for students. Such models are also popular in mathematics studies. Meanwhile, they are available in different price ranges with different quality.

*Last update on 2018-12-06 / Affiliate links(we get a commission when you buy on amazon) / Images from Amazon Product Advertising API