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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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Where can you find out about upcoming meteor showers?
Science & nature

Where can you find out about upcoming meteor showers?

What creates meteor showers, and where can you find out the best times and places to see lots of these shooting stars?

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How does the handle of a coffee cup stay cool?
Food & drink | Miscellaneous

How does the handle of a coffee cup stay cool?

I just poured scalding hot coffee into my favorite mug. I can barely touch the outside of the mug itself, but the handle stays nice and cool to the touch. What sort of magic is this? Coffee conundrum You wake up, stumble into the kitchen, fire up the coffee maker (or French press, or single-cup…

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What’s the difference between crocodiles & alligators?
Animals & pets | Science & nature

What’s the difference between crocodiles & alligators?

Are there any differences between crocodiles and alligators, or are they just different names for the same thing?

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How do air conditioners work?
Home & living

How do air conditioners work?

Air conditioning is one of those modern conveniences we much about – until we don’t have one or it breaks. How do air conditioners work?

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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 airport metal detectors work?
Travel | Science & nature | Tech

How do airport metal detectors work?

How do airport and concert venue metal detectors work? Somehow, a seemingly plain rectangular doorway can figure out if I left my keys in my pocket.

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What does Einstein’s E=mc2 mean?
Everyday life | Science & nature

What does Einstein’s E=mc2 mean?

What does Einstein’s famous equation E= mc2 actually mean? What equals what what? Early in the nineteenth century, Albert Einstein, while working as a clerk in a patent office, was inspired to propose a relationship between mass (the m), and energy (the E). His E=mc2 equation just states, in basic mathematical terms, that there is…

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