Magnetism has been known to human beingskind for over gram years ago. Basically Chinese and Greeks spy some exalted stones that were metal. About 4000 years ago, rocks were found in ancient Greek province of Magnesia. Also, Chinese mariners used metals to navigate. These rare metals were called lodestones. Chinese mariners discovered that if lodestones were stroked, a steel needle will point sexual union and south. This was how the concept of a magnetised compass was common to man. The magnetic compass was so popular that it was used by Christopher Colombus when he crossed the Atlantic Ocean. Chinese innovators used the magnetite as a part of a device made of dressed-up brass. On its surface a spoon-shaped lodestone was free to spread in the direction of the magnetic field. The compass marks mans earliest step to the first application of magnets. A compass needle determines direction by aligning itself with macrocosms magnetic North Pole and South Pole. By 13 century A.D. the compass changed its sole purpose and was near to man when travelling the sea. Before the existence of the compass, man relied on the sun and the sky for direction when travelling. The concept of magnetism continue to be popularized and around 1600 William Gilbert discovered that Earth was a big magnet itself.
Understanding magnetism was long foregone since it has been unexplained. There are many unanswered questions about magnetism e.g. What is it caused by? How it works exactly? The force between magnets occurs without the magnets touching, it occurs at a distance. When two magnets attract there are in each others magnetic field. Magnetic properties can be found in certain materials like iron, cobalt and nickel. When a material has magnetic properties it is attracted to iron, iron alloys and other magnetic materials. An physical object with magnetism will attach itself to iron if placed in close proximity to it. Magnetic forces are produced by a motion of charged particles like electrons....If you want to get a full essay, order it on our website: Ordercustompaper.com
If you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment