How NASA tests its most powerful rocket ever; gorgeous photos by Vincent Fournier. Everyday women in the early Neolithic and Bronze Age were likely stronger than today’s athletes. A guitar tuner designed for blind musicians. A good discussion of the question “Is it ethical to work for online casinos?” Behold the 1739 book Sir Isaac Newton’s Philosophy Explain’d for the Use of the Ladies. Building a regex engine in 40 lines of Javascript. The first text-message ever sent, 25 years ago, said “Merry Christmas”. A 1913 manual on the construction of swimming pools. Storytelling considered as an evolutionary survival skill. A DIY muon detector that costs only $100 in parts.

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