👉 Parallax is a visual effect in which an object appears to move away from or towards itself, depending on its distance from the observer. This can be caused by the Earth's rotation and the bending of light through different mediums (such as air or water) as it passes between them. The term was first used by Italian astronomer Giovanni Piazzi in his 1572 book "Sintesis Astronomica" to describe the visual effect. The phenomenon is named after the ancient