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.
Volatile Definition. In chemistry, the word volatile refers to a substance that vaporizes readily. Volatility is a measure of how readily a substance vaporizes or transitions from a liquid phase to a gas phase. However, the term can also be applied to the phase change from solid state to vapor, which is sublimation.