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Elon Musk·2026-03-10 20:27
The value of extreme precisionMath Files (@Math_files):In 1798, a scientist effectively “weighed” the Earth — without leaving his laboratory.The English scientist Henry Cavendish designed an incredibly sensitive experiment.Inside a quiet wooden shed, he hung a horizontal rod from a very thin wire. Two small lead spheres were https://t.co/2M79gQ84aD ...