What's the name of the inventor of the compass? Is there a compass on the mobile phone?
1. In China's azimuth culture, it has gone through three stages, from astronomical positioning to making Sina by magnetic method, and then from Sina to compass. Through continuous experiments, the orientation determination technology has been improved.
2, and the predecessor of compass is Sina, and Sina is the earliest magnetic guide. ? Sina? The appellation of ""began in the Warring States Period (475 BC? 22 BC1), ending in the Tang dynasty (ad 6 18? AD 907).
3. The main part of the compass is the magnetic needle installed on the rotating shaft. The magnetic needle can rotate freely under the action of natural geomagnetic field, and keep in the tangential direction of magnetic meridian. The north pole of the magnetic needle points to the geographical north pole, and the direction can be distinguished by using this property.
In ancient China, the compass was first used for etiquette, etiquette, military affairs, divination and geomantic omen. In modern times, it is often used in navigation, geodesy, tourism and military affairs. Is there a compass on the mobile phone?
There is an electronic compass on the mobile phone. In our commonly used smart phones, electronic compasses are basically installed. Electronic compass, also known as digital compass, is a method to determine the North Pole by using geomagnetic field. An electronic compass generally consists of a magnetoresistive sensor and a fluxgate. The above is a detailed introduction to the name of the inventor of the compass.