N Nik B New member Apr 25, 2009 #1 what is that model called with the metal rings, showing the planet's movements in the universe? i know that its something with galileo and his theory. also where can i buy a mini model of this?
what is that model called with the metal rings, showing the planet's movements in the universe? i know that its something with galileo and his theory. also where can i buy a mini model of this?
