(Wikimedia Commons)
An interesting, if slightly longish, account of the planet Vulcan, which was once thought to circle around the Sun inside the orbit of Mercury:
http://www.pbs.org/wgbh/nova/next/physics/hunt-for-vulcan/
Does anybody out there know who finally solved the riddle? And how?
Posted from Clovis, California
Ad-Free & Subscriber Log-In