Galileo's Pendulum

Bored during Mass at the cathedral in Pisa, the 17-year-old Galileo regarded the chandelier swinging overhead - and remarked, to his great surprise, that the lamp took as many beats to complete an arc when hardly moving as when it was swinging widely, Galileo's Pendulum tells the story of what this [...]
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Bored during Mass at the cathedral in Pisa, the 17-year-old Galileo regarded the chandelier swinging overhead - and remarked, to his great surprise, that the lamp took as many beats to complete an arc when hardly moving as when it was swinging widely, Galileo's Pendulum tells the story of what this observation meant, and of its profound consequences for science and technology.