IvanDkiwi said:
Welcome to PF, @IvanDkiwimalawi_glenn said:
The Foucault Pendulum is a simple device named after French physicist Léon Foucault. It consists of a large pendulum free to swing in any vertical plane. As the Earth rotates, the plane of the pendulum's swing appears to rotate relative to the Earth's surface. This apparent change in direction provides direct evidence of Earth's rotation.
Star trails are created when a camera captures the movement of stars over a long period of time. Because the Earth rotates on its axis, stars appear to move in circular paths around the celestial poles. These trails are concentric circles centered on the North and South Celestial Poles, visually demonstrating the Earth's rotation.
The Coriolis Effect is the apparent deflection of moving objects when viewed from a rotating reference frame, such as Earth. This effect causes moving air and water masses to turn to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. The Coriolis Effect is responsible for the rotation of large-scale weather patterns, providing indirect evidence of Earth's rotation.
Observations of the Sun and stars show that they appear to rise in the east and set in the west, completing a circuit around the sky approximately every 24 hours. This daily motion is due to the Earth rotating on its axis. The consistency of this pattern across different locations and times provides strong evidence for Earth's rotation.
Geostationary satellites orbit the Earth at a fixed position relative to the surface, matching the Earth's rotational period of 24 hours. These satellites appear stationary from the ground because they orbit at the same rate that the Earth rotates. The ability to maintain this fixed position relative to a rotating Earth provides practical and observable evidence of Earth's rotation.