At the 24 Hours of Le Mans in 1955, auto racer Pierre Levegh died in a nasty wreck, but he was not alone in his fate. Levegh's car flew into the stands at the track, killing more than 80 spectators and almost snuffing out the entire sport of auto racing altogether.
By Anne Marie Helmenstine, Ph.D. Definition: A quantum is a discrete packet of energy or matter. Quantum also means the minimum value of a physical property involved in an interaction.For example: the quantum of charge is the charge of an electron.Alternate Spellings: plural: quanta.y Anne Marie Helmenstine, Ph.D. Definition: A quantum is a discrete packet of energy or matter. Quantum also means the minimum value of a physical property involved in an interaction.
Molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance.