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How do 3D printers work?
Tech

How do 3D printers work?

Not long ago, the idea of printing three-dimensional objects at home might have sounded like a thing out of The Jetsons. So how do 3D printers work, anyway?

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What is a solar flare?
Science & nature | Tech | Travel

What is a solar flare?

What is a solar flare, do they really cause problems here on Earth – and should you worry? Learn more here.

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How do touch faucets work?
Home & living | Science & nature

How do touch faucets work?

If you’ve seen those fancy kitchen and bathroom touch faucets where you just touch them to turn the water on or off, you might wonder: how do they work?

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Why are circuit boards green?
Tech

Why are circuit boards green?

Inside almost every electronic device – from your computer’s motherboard to a remote control – seems to have a green circuit board inside. Why that color?

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