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North Arrow/Magnetic Compass
Directional Magnetic Compass - Disha Suchak Yantra
Magnetic Compass for Navigation / Lensatic Compass Magnifier
Disha Suchak Yantra Vaastu Shastra (Hoka Yantra)
Product:- OEM - Made In China
Size: 7.5 x 5.5 x 2.5 cm (approx.)
Use: Pointing Guide
Shockproof or Not: Plastic Part + Metal
Carrying Mode: Handheld Type
Outdoor Activity: Camp / Tracking / Mountain-climbing / Tour / Driving / Vastu Disha etc.
Color: Army Green, Black, Silver etc. (No color choice)
With Noctilucent Display: Yes
Dial Display: Pointer
Waterproof / Water-Resistant: Yes (To some extent)
Case Material: ABS
Diameter of Dial: 4.5cm
The magnetic compass has been used for navigation for hundreds of years. At one time, it was the only reliable means of direction-finding on days when the sun and stars were not visible. Nowadays, sophisticated equipment is available that enables users to determine bearings accurately and to pinpoint locations to within a few meters.
While the designs of compasses are different, all compasses include a magnetized needle that orients itself to the magnetic fields in the Earth. The basic field compass, also sometimes called a baseplate compass.
The magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since about 206 BC). The compass was used in Song Dynasty China by the military for navigational orienteering by 1040-1044, and was used for maritime navigation by 1111 to 1117. The use of a compass is recorded in Western Europe between 1187 and 1202 and in Persia in 1232. The dry compass was invented in Europe around 1300. This was supplanted in the early 20th century by the liquid-filled magnetic compass.
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