The term massive particle refers to particles which have non-zero rest mass. They are divided in two major groups, bradyons and tachyons. The existence of massive superluminal particles is a controversial issue.
Famous quotes containing the words massive and/or particle:
“I imagine, on the benches of an assembly, the most intrepid of thinkers, a brilliant mind, one of those men who, when they ascend the tribune, feel it beneath them like the tripod of the oracle, suddenly grow in stature and become colossal, surpass by a head the massive appearances that mask reality, and see clearly the future over the high, frowning wall of the present.”
—Victor Hugo (1802–1885)
“You don’t hold any mystery for me, darling, do you mind? There isn’t a particle of you that I don’t know, remember, and want.”
—Noël Coward (1899–1973)