Effortless DIY Electric Train

Effortless DIY Electric Train

The relationship between electricity and magnetism is as old as space and time, but is a complicated one. As light propagates, electricity and magnetism flow in and out of each other, forever connected. This connection can allow for some pretty interesting phenomenons in physics. Due to induction, we can get the “train” to propel forward.

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How Spinning Magnets Make the World Turn

How Spinning Magnets Make the World Turn

We all know know what magnets are. At the very least, you’ve probably put one on the fridge. Magnets can come in all shapes and sizes, but they all work the same way. In simple terms, they have a north pole and a south pole. When two identical poles get close, they repel, and–of course–opposites

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DIY: Make a Magnetic Slime Monster!

DIY: Make a Magnetic Slime Monster!

Did you know that our planet is a giant magnet? It’s true! Without Earth’s magnetic field, compass navigation would be impossible. The field also shields us from cosmic radiation, directing most solar wind far around our planet. In space, large objects are generally too distant from each other to be noticeably pulled or pushed by

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DIY Electric Motor

DIY Electric Motor

Electric generators change mechanical energy into electrical energy. An electric motor does the opposite: it changes electrical energy into physical motion. This conversion is possible because of the Lorentz force. Electricity is just the movement of electrons through a loop, called a circuit. Ever notice how magnets can repel or attract objects without touching them?

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Exploring Magnets with Ferrofluid

Exploring Magnets with Ferrofluid

Magnets can do some pretty strange things. In first year physics classes, people are usually introduced to a mysterious thing called a magnetic field. These are invisible lines that help describe how magnets interact. This can make thinking about magnets rather intimidating, as it seems that they must be taken on faith. However, this doesn’t

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