Question

what is a pendulum who discovered it and where it is used in nowadays also how does it work explain in detail​

Answer 1

Christiaan Huygens

The Italian scientist Galileo first noted (c. 1583) the constancy of a pendulum's period by comparing the movement of a swinging lamp in a Pisa cathedral with his pulse rate. The Dutch mathematician and scientist Christiaan Huygens invented a clock controlled by the motion of a pendulum in 1656. A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.

Answer 2

$Explanation$

★ The Dutch mathematician and scientist Christiaan Huygens invented a clock controlled by the motion of a pendulum in 1656.

★ When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.