![]() ![]() These extra-safe precision compasses have a blunt safety needle to prevent injury. The school compasses (models 550 50, 550 55, 550 60, 559 WP 00) in our product range are specifically designed for younger children.If you secure one leg to a surface, you can then determine the radius of a circle by setting the distance of the second leg.Ī wide choice of very sturdy compasses for different requirements There are also models with an adapter for attaching a short pencil instead of the integrated lead. At the end of the other leg, there is a replaceable lead for drawing circles or segments on paper. There is also a needle at the bottom of one leg to secure the compass to a surface. This allows you to quickly and easily adjust the compass to the desired position. You can turn this in different directions to spread or close the legs. Compasses with a spindle guide have a wheel in the center that can be adjusted with one hand. Compasses also have a crossbar at the upper end where the legs meet with opposite-running threads. The legs are connected together at the top by a hinge, allowing them to move flexibly. ![]() These versatile drawing instruments essentially consist of two legs. How are compasses constructed and what can they be used for?Ĭompasses are drawing instruments that are primarily used to perform the following tasks in geometry: Our compasses are also available in compact sets with practical accessories. ![]() We offer products that meet various requirements, from solid metal to sturdy plastic/metal designs. Our models are particularly sturdy, providing the ideal basis for creating precise drawings at school and in professional applications. Wallet containing a 6" Bow compass with lead boxĬase with hinged lid containing 1 quick-setting compass with lead part, universal adapter and spares boxĪt STAEDTLER, our product range includes a large selection of high-quality compasses. Plastic case with hinged lid containing 1 compassĬon unasta articolata in astuccio con prolunga e tubetto mineĬon unasta articolata, in astuccio con innesto a punta, tiralinee, impugnatura e tubetto mineĬase with hinged lid containing 1 precision compass with lead part, extension bar, universal adapter and spares box Wallet containing 1 math set with 6" ruler, 4" protractor, 45/90° triangle, 30/60° triangleĬase with hinged lid containing 1 compass with lead part, universal adapter and spares boxĬase with hinged lid containing 1 compass with lead part, universal adapter, dividers and spares box ![]() In about that period, Chinese people found that lodestones, suspended so it could turn freely, would always point in the same direction.Plastic bag containing 1 ruler 30 cm, 1 protractor, 1 set square 567 26-60, 1 set square 567 26-45 We don’t know when precisely a compass is invented but we know that it was invented in China between the 2nd century BC and 1st century AD, during the Han Dynasty. These compasses contained naturally occurring magnetic mineral called magnetite. It was used at the time by the Chinese for Feng Shui and later for building, farming and mining. Who invented the compass China?Īround 200 BCE, the Han dynasty in China produced the first-ever compass. Among the Four Great Inventions, the magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since c. If local variation between magnetic north and true north is known, then direction of magnetic north also gives direction of true north. From Middle English compas (“a circle, circuit, limit, form, a mathematical instrument”), from Old French compas, from Medieval Latin compassus (“a circle, a circuit”), from Latin com- (“together”) + passus (“a pace, step, later a pass, way, route”) see pass, pace. ![]()
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