Fun with Magnets
Magnet- an introduction
You are familiar with the fact that magnets have a variety of applications in our daily lives. Magnets are used in refrigerator doors, in junkyards, as pin holders, in screwdrivers, etc.
A question that can arise in our minds is how magnet was discovered. In this section, we will tell you an interesting story about the accidental discovery of magnet.
Around 2,000 B.C., a shepherd named Magnes lived in an area named Magnesia (situated in Northern Greece). He used to take his herd of sheep to graze in the nearby mountains. He used to control his herd with a long stick that had an iron tip. Also, a few iron nails were fixed to his shoes.
It is said that one day while he was herding his sheep, he observed that his shoes and the tip of the stick were stuck to a large black-coloured rock. It was very difficult for him to move on that black rock. Later, this rock and similar rocks were named magnetite (after either his name or that of the place). Magnetite has the property to attract objects made up of iron. The substances that can attract iron are now known as magnets.
Do You Know:
Lucretius was the first person who wrote magical stories about magnets around the first century BC.
Magnetite is the natural magnet. It is found in the form of rocks. Sometimes, magnetite is found in large quantities in beach sand. It is also found in the brain of bees, some birds, and in humans
With the passage of time, people learned to make magnets from iron pieces. These magnets are known as artificial magnets. Like natural magnets, these artificial magnets can also attract iron objects. With the help of modern technology, artificial magnets having different shapes (for example, bar magnets, cylindrical magnets, and horseshoe magnets) are also made.
Let us have some fun with a magnet.
Find more on the discovery of magnets from this video
Video(s) by teachers:
Properties of a Magnet
Attach a magnet to one end of a long stick. No…
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