How Does a Speaker Work?

How Does a Speaker Work?

It’s easy to look at a piece of technology (like a speaker) and feel like you’re looking at a black box, wondering how they work. What’s hidden inside them? It must be complicated, right? Often times, that holds some truth. But you would be...

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Electric Motor DIY

Electric Motor DIY

An electric motor is a device used to convert electrical energy to mechanical energy. Electric motors are extremely important in modern-day life. They are used in vacuum cleaners, dishwashers, computer printers, machine tools, cars, subway...

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Wind Power at AstroCamp

Wind Power at AstroCamp

Wind farms are a common sight these days, but humans have been using wind power for about 2,000 years. It wasn’t always for electricity, however, but to mill grain into flour, operate an organ, or pump water. How does a windmill do any of that...

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Static Electricity: It's Shocking

Static Electricity: It's Shocking

Have you experienced rubbing your feet on carpet just to reach out to someone and give them a little zap? Or slide down a plastic slide and gotten a nice jolt from it?  What about rubbing a balloon on your head to make your hair stand on end? A...

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DIY Soda Battery

DIY Soda Battery

Elementary school students the world over are familiar with potato batteries or lemon batteries, but did you know you can make a battery from soda? With just some wire, two different kinds of metals, and your favorite soda, you can build your own...

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What is an Electromagnet?

What is an Electromagnet?

Here at AstroCamp, one of our most popular classes is Electricity and Magnetism. At first glance, it might not be obvious how these things are related, but they are actually tied together through important physical principles. To give you some...

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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...

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Fantastic Plasma

Fantastic Plasma

The universe is full of action at a distance. Planets and stars tug on each other via the gravitational force. Magnets attract or repel based on their polar orientation. An object’s area of influence is called its field. Gravity, electricity, and...

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