A pendulum's swing time depends on its length, not its mass — Galileo's discovery.
Period
T = 2π√(L/g)
Galileo timed pendulums against his pulse — and figured this out before there were stopwatches.
A pendulum's swing time depends on its length, not its mass — Galileo's discovery.
Galileo timed pendulums against his pulse — and figured this out before there were stopwatches.