1 : the act of conducting or conveying. 2a : transmission through or by means of a conductor; also : the transfer of heat through matter by communication of kinetic energy from particle to particle with no net displacement of the particles â compare convection, radiationb : conductivity.
The name ping-pong was in wide use before English manufacturer J. Jaques & Son Ltd trademarked it in 1901. The name Ping-Pong then came to be used for the game played by the rather expensive Jaques equipment, with other manufacturers calling theirs table tennis.
Sittman and Pitt of Brooklyn, New York, U.S. developed a gambling machine in 1891 which was a precursor to the modern slot machine. It contained five drums holding a total of 50 card faces and was based on poker.