electromagnet

/Tag: electromagnet

Electromagnets – electricity and magnets

By |2019-05-27T07:14:24-07:00August 16th, 2017|History|

There are electromagnets inside stereo speakers When did people invent electromagnets? In the early 1800s AD, about 200 years ago, scientists in Denmark and Britain figured out another way to make magnets. (These countries had a lot of scientists thanks to colonization, slavery, and control of trade). History of electricity History of slavery Europe's [...]

Electromagnet project – Electricity – Science

By |2019-05-27T09:55:53-07:00August 16th, 2017|Physics|

Build your own electromagnet with a nail, some copper wire, and a battery What will I need? You can build your own electromagnet. Get about five meters of copper magnet wire (you can buy it at Radio Shack or Home Depot), a large iron nail or another piece of iron about the same size like a butter [...]

What is a battery? Electricity

By |2018-05-31T11:49:20-07:00August 16th, 2017|Modern Europe, Science|

A Leyden Jar - an early kind of electric battery In the early 1800s AD, about 200 years ago, scientists in Denmark and Britain figured out another way to make magnets. This way you didn't need a lodestone. You could also make much stronger magnets. And you could turn the magnets on and off. [...]