History of magnet

The magnetism was discovered thousands of years, and magnets are used for different purposes since. This is a great mystery and controversy surrounding the discovery of magnetism. Let's look at some of the many legends about magnets, including how they were discovered and some of its early applications.

Around about 2500 BC, a young shepherd named Magnes who lived near Mount Ida in Greece, mountain frequently mentioned in Greek mythology. According to legend, Magnes shoes with soles made of iron. It is often difficult to climb the mountain where he tended his sheep as a result of excessive use of mineral or natural magnetic magnet, which are present in rocks and soil on the mountain. The Greeks called the material "Magnes" in honor of the opening, and this is how we have today the magnet word to use.

The first historical use of magnets is the development of the compass of the 8th century Chinese. It was first documented by Zheng He in the Yunnan province. Between 1405 and 1433, Zheng He recorded his travels in the seven seas. Zheng used the compass points of constellations marking found with sextant, but in the middle of the compass is a spoon-shaped device made of magnetite. In later centuries, the magnetic needle is replaced with a metal magnet by rubbing with a sharp piece of magnet. After a sailor Zheng He would not want car in the sea without two key instruments for navigation, a compass and sextant.

Greek philosopher Aristotle spoke about magnets than 300 years before the birth of Christ. He writes about magnets and their use to reduce pain. During this time, says that doctors use magnetic therapy for arthritis and muscle spasm reduction.

Cleopatra is said to be a part of the magnetic jewelry to eliminate forehead wrinkles and maintain youth. She says she believes so strongly in the value of magnetism, which usually lay in bed stone built-in magnet for young people to improve their appearance. Who knows how well they work or not, as only lived 39 years.

Executed in 1777 AD by the Royal Society of Medicine in France, a thorough study of the history of magnets and their use in medical practice. Despite some skepticism and mockery of the usual medical authorities at the time concluded the Royal Society for the magnets can be used in medicine for the treatment of back pain and neck pain, headaches, circulatory problems, neck pain, and many other diseases.

Before 1820 only magnetic substances known to man is a magnet, and other metals, which are rubbed against a magnet magnetize them. In 1820, a scientist named Hans Christian Oersted, a professor of computer science at the University of Copenhagen, said that every time you have an electric current near a compass, the direction of the needle moved. In the coming months worked hard to try to explain the logic and understanding of what he observed. His research led to the electromagnet, as we know it today. Hans Christian Oersted, although not developed electromagnetic experiments led directly to this important new technology and new insights of physics.

From the earliest knowledge and magnetism magnet for thousands of years, our understanding of magnets increases exponentially. Magnets play a role today, most devices that use modern technology, including computers, cars and mobile phones. Although we do not know what new magnet technology is the future of humanity, we can be sure of one thing. As our understanding and knowledge of the magnets continues to improve, how the magnetic force will operate and use it to expand and develop good