when magnets discovered

Magnets were first discovered over 2,000 years ago in China. However, it was not until the 18th century that scientists began to study and understand the properties of magnets.

One of the most significant discoveries was made by a French physicist named André-Marie Ampère in the early 19th century. He discovered that electricity and magnetism were related, leading to the development of electromagnetic theory.

Another important discovery came in 1820 when a Danish physicist named Hans Christian Oersted found that an electric current passing through a wire could cause a magnetic needle to move. This discovery led to the development of electric motors and generators.

However, the most well-known discovery in magnetism came in 1825 when an English scientist named William Sturgeon created the first electromagnet. This led to the development of powerful magnets that could be turned on and off with the use of electricity.

Today, magnets are used in a wide range of products, including speakers, electric motors, and MRI machines. They are also used for everyday purposes, such as holding notes on a refrigerator.