Coriolis flow meters

Coriolis flow meters are named after Gaspard Gustave de Coriolis, a French mathematician and engineer. In 1835, Coriolis wrote a paper in which he described the behaviour of objects in a rotating frame of reference. While this is sometimes called the Coriolis force, it is more accurately called the Coriolis Effect, since it is not the result of a force acting directly on the object, but rather the perceived motion of a body moving in a straight line over a rotating body or frame of reference.

A basic analogy would be someone throwing a ball from the centre of a rotating merry-go-round. If she throws the ball at a horse on the edge of the merry-go-round, assuming the merry-go-round is rotating at a rapid pace, she will not hit the horse she is aiming at but perhaps the one after it, since the horse she aimed at will have moved by the time the ball reaches the edge of the merry-go-round.