The Mountain That Weighed the Earth . How scientists in...
did:plc:lpgt43utmdtifoyu2eqoexbz
February 5, 2026
The Mountain That Weighed the Earth. How scientists in 1774 used a Scottish mountain to estimate the mass of the Earth to within 20% of the modern number by measuring the mountain’s gravitational effect on a precision plumb line.
💬 Join the discussion on kottke.org →
Discussion in the ATmosphere