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:
“their massive blood
moves as the moon-tides, near, more near,
till they touch in flood.”
—D.H. (David Herbert)
“Each particle is a microcosm, and faithfully renders the likeness of the world.”
—Ralph Waldo Emerson (1803–1882)