As usual, that shows fatally inadequate understanding of the physics.
Foucault's pendulum is a subtle effect. It requires that the pendulum is unimpeded to swing in all directions and keeps swinging a long time. For example, pendulums in clocks are typically constrained to swing in a single direction by their design. Like a tram on rails.
The example in the Science Museum in London uses a very elegant design to ensure it keeps swinging permanently. The way it works is very like a person on a swing. At the high points of swings a small motor tugs the cable slightly higher providing a little gravitational potential energy to the pendulum to compensate for the small amount of energy lost from air resistance and flexing of the cable. Of course this mechanism has no directionality, so has no effect on the beautiful way the pendulum maintains its absolute direction of swing as the Earth rotates, so this visibly rotates over the course of 24 hours relative to the ground.
The same effect is demonstrated by the examples in these countries, where sane people live.
Contents
- 1Europe
- 1.1Austria
- 1.2Belarus
- 1.3Belgium
- 1.4Bulgaria
- 1.5Czech Republic
- 1.6Denmark
- 1.7Estonia
- 1.8Finland
- 1.9France
- 1.10Germany
- 1.11Hungary
- 1.12Iceland
- 1.13Italy
- 1.14Latvia
- 1.15Liechtenstein
- 1.16Lithuania
- 1.17Luxembourg
- 1.18Moldova
- 1.19Netherlands
- 1.20Norway
- 1.21Poland
- 1.22Portugal
- 1.23Romania
- 1.24Russia
- 1.25Serbia
- 1.26Spain
- 1.27Sweden
- 1.28Switzerland
- 1.29Ukraine
- 1.30United Kingdom
- 2Africa
- 3Asia
- 4North America
- 5Central and South America
- 6Australasia
- 7Antarctica
If indeed the Foucault pendulum was proof of a spinning earth then there should not exist a pendulum on earth not moving. We know that is not the case.