The breaking of our Liberties

Fracture mechanics is basically about scaling. Leonardo da Vinci (1452–1519) was the first to record some understanding of scaling in fracture, by designing strength tests on iron wires of different length. While we don’t know whether Leonardo actually ever realized such tests, which would have required a high

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No-way for the one-way speed of light

In the 5th century B.C., Zeno of Elea argued that motion is impossible. Although few philosophers have accepted Zeno’s conclusion (but Bertrand Russell described his logic as “immeasurably subtle and profound”) it must be conceded, I believe, that Zeno did raise some profound questions. Zeno’s paradoxes

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Chernobyl times

I very vividly remember the day the Chernobyl accident was announced at the Italian TV, and the news of a few days later when the authorities asked people to stop consuming “wide-leaf vegetables” because of the risk of accumulation of

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