Description

Compass:- Clementoni – Build A Compass:  Put together a true compass. Discover how this ancient instrument works and learn how magnetism influences our Planet.

Features

• Learn how magnetism influences our planet.

• Put together a true compass.

• Discover how this ancient instrument works.

• Made in Italy.

Facts about a compass:- A compass is an instrument used for navigation and orientation that shows direction relative to the geographic cardinal directions (or points). Usually, a diagram called a compass rose shows the directions north, south, east, and west on the compass face as abbreviated initials. When the compass is used, the rose can be aligned with the corresponding geographic directions; for example, the “N” mark on the rose points northward. Compasses often display markings for angles in degrees in addition to (or sometimes instead of) the rose. North corresponds to 0°, and the angles increase clockwise, so east is 90° degrees, south is 180°, and west is 270°. If magnetic declination between the magnetic North and true North at latitude angle and longitude angle is known, then the direction of the magnetic North also gives the direction of true North.

The magnetic compass is the most familiar compass type.

The magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty and later adopted for navigation by the Song Dynasty Chinese during the 11th century. The first compasses in the ancient Han dynasty China were made of lodestone, a naturally magnetized ore of iron. Later compasses were made of iron needles, magnetized by striking them with a lodestone. Dry compasses began to appear around 1300 in Medieval Europe and the Islamic world. This was supplanted in the early 20th century by the liquid-filled magnetic compass.

Recommended Age

Age: 8+