physicsfun on Instagram: "Balancing Bottle Rack: for those who like physics and wine this rack for one bottle is a famous unstable equilibrium demonstration- a balancing act where the center of mass of the rack/wine bottle system is directly over the base. Suspended here is Educated Guess by Roots Run Deep, an excellent cabernet sauvignon from the North Coast of California. ➡️ Follow the link in my profile for info on where to get this rack (and similar ones) as well as all the other amazing ite