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History of Electricity – Science of shocks

By |2017-09-05T08:39:33+00:00September 5th, 2017|Science|

A bolt of lightning in the sky Like other inventions, electricity took thousands of years to develop, as scientists all over the world investigated first one idea and then another. Scientists grouped together unseen forces - both magnetism and electricity - and tried to figure out whether these forces were inside the attractor, [...]

What are magnets? Physics and electricity

By |2018-05-31T11:49:22+00:00August 16th, 2017|Physics|

A magnet holding a steel bar Magnetism is a force created by electricity, or more specifically by electrons. In any iron atom, there are 26 electrons. Each electron has a tiny bit of negative charge. The way these electrons behave is impossible for us to imagine, because it's not like anything we can see. But we can [...]

Electromagnets – electricity and magnets

By |2018-05-31T11:49:20+00:00August 16th, 2017|History|

An electromagnet from inside a stereo speaker 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. The new way [...]

Electromagnet project – Electricity – Science

By |2018-05-31T11:49:13+00:00August 16th, 2017|Physics|

Build your own electromagnet with a nail, some copper wire, and a battery 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 knife, a rubberband, some sandpaper, [...]

Strong nuclear force project – Chemistry

By |2018-04-16T17:48:07+00:00June 1st, 2017|Chemistry|

You can't see an atom, so you can't see how its protons clump together to make the nucleus. But you can see a similar effect when the force of magnetism (a kind of electricity) works against the force of gravity. All you need is a magnet and a paper clip, a piece of thread and [...]