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Magnets

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Who discovered magnets?

Legend has it that magnets were found incidentally by a Greek shepherd named Magnes. While tending his sheep in a district of northern Greece called Magnesia, the shepherd made a stride and abruptly discovered that the metal tip of his shoe was stuck on a stone he was remaining on.

photo via wikipedia
A “horseshoe magnet” made of alnico, an iron alloy. The magnet, made in the shape of a horseshoe, has the two magnetic poles close together. This shape creates a strong magnetic field between the poles, allowing the magnet to pick up a heavy piece of iron.

Baffled, he started burrowing and found the principal recorded lodestone. It is said that from that point forward Lodestone began getting known as “magnetite”, likely named after Magnes or Magnesia.

In spite of the fact that the term lodestone originates from the Anglo-Saxon signifying “driving stone”

How were magnets previously utilized?

The primary reported utilization of magnets has been for a compass. Between the years 1405 and 1433, Zheng He of Yunnan area referenced the utilization of a compass with an attractive needle as he recorded his voyages crosswise over seven seas.

Despite the fact that it is contended that the soonest comprehension of magnet as a guide in a compass for sailors was recorded in 1180 by an Englishman Alexander Neckam.

photo via wikipedia
Field of a cylindrical bar magnet calculated with Ampère’s model

Furthermore, by 1820, the Dutch researcher Hans Christian Oersted found the connection among power and magnets which a year later French physicist Andre Ampere extended it further.

Electromagnetism is utilized in all sort of electronic gadgets we use today, for example Hard circle drives, speakers, engines and generators. They are additionally utilized for MRI machines to take photos of your body parts to recognize any medical problem!


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