Ralphonsicus Messages 47 Reaction score 0 Thread starter Jan 31, 2012 #1 For example can massless particles serve as media?
rktpro Messages 62 Reaction score 0 Jan 31, 2012 #2 Ralphonsicus said: For example can massless particles serve as media? Don't we call that vacuum?
easyrider Messages 89 Reaction score 0 Jan 31, 2012 #3 Ahh but the all encompassing aether is massless.