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Weeping is not just about ruining a good tissue. Researchers have found that crying could serve an important evolutionary purpose, that tears send chemical signals to other people, and that the salty globules can generate electricity. Then there are the mysteries, like why some people cry more on…
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Iron swirls at the center of the Earth and even in our blood. The metal also resides within mysteries like Earth’s disappearing iron and the ancient Chinese potters who created a rare variant that no modern laboratory can. Iron’s reputation might be dull, but it turns up in strange places in ways…
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When looking for the ick factor, old teeth are the best. Nothing beats scores of cavity-ridden teeth inside the subway or fangs stitched into a Stone Age purse. As curious as gruesome finds are, ancient teeth are not just about the gore. In recent times, they rewrote Egyptian jobs, proved that…
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