Ahh, radioactivity and radioactive materials. The common origin of Daredevil and the Teenage Mutant Ninja Turtles, and a hazard we're shockingly casual with. Of course, we know that Atomic Gardening has the potential to save the world, but maybe shoe store x-rays are too far. Nuclear power and its byproducts is one of those really-good-or-really-bad things, which means that while it's cool your dentist can take good x-rays now, maybe it's not cool that the Museum of the Grand Canyon had buckets of uranium lying around

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6 Man-Made Materials You Won't Believe Exist

'Man-made materials' make most people think of disastrous fashion, or whine about how things were better when everything was natural and green. But we invented doors and electrical supplies to keep her out, and some of us have been building incredible unnatural things ever since.

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