Who ever claimed that you couldn't slowly rotate a pendulum without rotating the whole earth? Of course you can, pendulums are weak and we are stong! The claim is that people
aren't doing that. Our friend Dr Agnabusi, for example had no visible motor nor motive to go through all that work for fun, then lie about it to strangers.
Oh, and while google has results for other members, it has no results at all for zeteticzeus69. It crawled profiles and posts from members who signed up in 2005, posted 11 times then left, but has nothing cached for your friend