Ian Stewart, “The Joy of Mathematics” (Open Agenda, 2021)
New Books in Science
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Horse Traps Aren't Moving the Way They Really Are Moving
People er got animal movement wrong. If you look at some eighteenth century paintings of horses, they have all legs extended at the same time because that's the way it appeared to them in their snapshot. They weren't actually moving the way they really are moved. And there's a whole history of in one of the big problems from aristotle right through to ar somewhere towards the end of the nineteenth century,. was, if a horse is trotting, are there times when it’s completely off the ground?
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