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The magnetic compass was first invented as a device for divination as early as the Chinese Han dynasty and Tang dynasty (since about 206 BC). [1] [3] [34] The compass was used in Song dynasty China by the military for navigational orienteering by 1040–44, [22] [35] [36] and was used for maritime navigation by 1111 to 1117. [37]
Ritchie thought they could be improved upon, and by 1860 had received a U.S. patent for the first successful and practicable liquid-filled marine compass suitable for general use, [10] [11] a development that has been described as the first major advance in compass technology in several hundred years. [12]
In the middle of the XVth century historian Flavio Biondo wrote that compass had been invented in Amalfi. In 1511, Giovan Battista Pio wrote: "In Amalfi, Campania, the use of the magnet was invented, according to Flavio". But later due to a misplaced comma this was narrated as "the use of the magnet was invented by Flavio, it is said". [4]
Elmer Ambrose Sperry Sr. (October 12, 1860 – June 16, 1930) was an American inventor and entrepreneur, most famous for construction, two years after Hermann Anschütz-Kaempfe, of the gyrocompass and as founder of the Sperry Gyroscope Company. [3]
Chunkey – a Native American game where a person rolls a hoop covered in a leather strap framework and tries to hit it with spears or arrows. This may have inspired the sport of skeet shooting. [21] Compass (possibly) – the Olmecs are known to have knowledge of magnetism. The discovery of a hematite artifact has led many experts to believe ...
1187 – Alexander Neckham is first in Europe to describe the magnetic compass and its use in navigation. 1269 – Pierre de Maricourt describes magnetic poles and remarks on the nonexistence of isolated magnetic poles; 1282 – Al-Ashraf Umar II discusses the properties of magnets and dry compasses in relation to finding qibla. [7]
Capra’s second confrontation with Galileo was sufficiently serious for Galileo to decide he needed to confront it openly. In 1602 Capra and his father had asked Galileo to let them observe how his proportional compass worked – although Galileo had not invented the instrument, he had made it much easier to use and had devised new applications for it.
Perdix (Ancient Greek: Πέρδιξ meaning "partridge" [1]) was a nephew and student of Daedalus in Greek mythology, claimed to have invented the potter's wheel, the saw, and the compass. In other sources, Perdix was the name of Daedalus's sister, and her inventor son was named Talos or Attalus. [2]