What is Bradyon?
'''Bradyons''', also known as '''tardyons''' or '''ittyons''', are very small [[particle]]s that travel below the [[speed of light]], as opposed to hypothetical [[tachyon]]s (which travel above the speed of light). All known [[subatomic particle]]s which have [[mass]] are bradyons. {{elementary}} {{physics-stub}} [[Category:Subatomic particles]]