Top 5 technology invention

Posted on 18 December 2016 at 11:29

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Blood is always red, actually. Veins look blue because light has to penetrate the skin to illuminate…

Most tattoos are not blue. The pigment, made from carbon, is actually jet black. Since the pigment i…

The most common and logical explanation for the phenomenon is that in the wild, circling was a Mathi…

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