Does Anybody Really Know What Time It Is?
Engineering / Breakthroughs
So, what, exactly, is the watch on your wrist, Big Ben in London, or the national atomic clock in Boulder, Colorado, actually measuring? The first definition of a second was 1/86,400 of the average so continue reading this fact
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X-Ray Images & False Color
Engineering / Processes
The colors we see in the world around us are the result of the way that the human eye and brain perceive different wavelengths of light in the visible part of the electromagnetic spectrum. X-rays, and continue reading this fact
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How Can A Bullet-proof Vest Stop A Bullet?
Engineering / Breakthroughs
Here's an experiment: take the small coil springs from a dozen or so retractable pens and roll them together in a heap until they are thoroughly tangled and entwined. Now try to pull them apart from e continue reading this fact
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