Pjpic Messages 235 Reaction score 1 Thread starter Jan 24, 2013 #1 EM radiation seems like a wave traveling through spacetime so, why isn't spacetime the same as ether?
EM radiation seems like a wave traveling through spacetime so, why isn't spacetime the same as ether?
Dale Mentor Insights Author Messages 36,986 Reaction score 15,962 Jan 24, 2013 #2 Because it doesn't have a definable state of motion.