For ten points, name this deviceconsisting of a mass suspending from a pivot, from which it swings back and forth.
One of these devices with a length of 994 millimeters can be used to measure a second. The precession ofoneofthesedevicesprovedthattheEarthrotates,accordingtoFoucault.ChristianHuygens used these devices to make more accurate (*) grandfather clocks. For ten points, name this deviceconsisting of a mass suspending from a pivot, from which it swings back and forth.
One of these devices with a length of 994 millimeters can be used to measure a second.
pendulum (prompt on "(simple) harmonic oscillator" before "simple harmonic" is read)