Coriolis / foucault pendulum
How does a glober use Foucault pendulum to prove earth rotation but also say that the atmosphere moves with the earth ? Isn’t this a blatant contradiction. Same with Coriolis
1 Reply
No rotation is proven.
It is indeed a contradiction. The Coriolis effect requires two reference frames (one rotating non-inertial frame and one non-rotating inertial frame), while an "atmosphere rotating with the Earth" would only be one reference frame.
Foucault Pendulum:
“Once you set one in motion, its direction of swing will rotate at a rate of about 0.2 degrees every minute. But in fact, it isn’t really the pendulum that’s rotating: the pendulum is swinging back and forth in exactly the same direction.
It’s the Earth which is ROTATING UNDERNEATH THE PENDULUM,
which makes it APPEAR that the pendulum is in fact changing direction.”
https://plus.maths.org/content/mathematical-mysteries-foucaults-pendulum-and-eclipse
https://globeterminator.com/coriolis/