How it works?
Compass has magnetized turn signal that is fastened to the substrate, in such a way that it enables it to rotate freely around its axis. The substrate usually has on itself a compass rose written, a picture that shows primary and secondary sides of the world. Compass works thanks to natural magnetism of the Earth. The North Pole magnetism pointer is directed towards the north pole of the Earth.
Where is a compass used?
And still to this day, despite the instruments that can read the position of the ship or an aircraft and whether it is still at sea and or in the air using satellites,the magnetic compasses are used for orientation. Many hikers, rock climbers and athletes use it to determine which way they must go. At rally races in which a route is not established drivers are using a compass to determine the direction. And if you know a scout, he will certainly be able to tell how useful it is to use this device.
Orientation using the compass
Compass is a navigational instrument for orientation. Its main part is a movable magnetic needle, who’s one pole (highlighted with color and / or shape of the arrow) always points to the north. On the compass major sides of the world – north (N), east (E), south (S) and west (W)are marked. It turns until the symbol N coincides with the north pole of the magnetic needle. The Italian word Bussila is often also used for the word for compass. This term is used mostly in the measurement technique to highlight the precise compass. In the absence of a compass, it can be oriented with some of the other methods.
Did you know?
- That the compass is one of the inventions that arrived in Europe before it did in the Arab world (as opposed to eg. numbers and many medical discoveries)
- That the Portuguese maps draftsman Pedro Reinel drew the first compass map (also called a compass rose) and he marked 32 directions on it? He specially marked the direction to the Holy Land.
- That the needle that points north is usually marked by a red color?