PROPORTIONAL a.
ituting a proportion; having the same, or a constant, ratio; as, proportional quantities; momentum is proportional to quantity of matter. Proportional logarithms, logistic logarithms. See under Logistic. -- Proportional scale, a scale on which are marked parts proportional to the logarithms of the natural numbers; a l…
QUANTITY n.
ict. ) -- Quantity of matter, in a body, its mass, as determined by its weight, or by its momentum under a given velocity. -- Quantity of motion (Mech.), in a body, the relative amount of its motion, as measured by its momentum, varying as the product of mass and velocity. -- Known quantities (Math.), quantities whos…
REACTION n.
ter revolution, reform, or great progress in any direction. The new king had, at the very moment at which his fame and fortune reached the highest point, predicted the coming reaction. Macaulay. Reaction time (Physiol.), in nerve physiology, the interval between the application of a stimulus to an end organ of sense an…
ROPE n.
d upon. -- Rope pump, a pump in which a rapidly running endless rope raises water by the momentum communicated to the water by its adhesion to the rope. -- Rope transmission (Mach.), a method of transmitting power, as between distant places, by means of endless ropes running over grooved pulleys. -- Rope's end, a pi…