Meaning & History. From a Germanic name meaning ruler of the army, composed of the elements wald rule and hari army. The Normans brought it to England, where it replaced the Old English cognate Wealdhere.A famous bearer of the name was Sir Walter Scott (1771-1832), a Scottish novelist who wrote 'Ivanhoe' and other notable works.eaning & History. From a Germanic name meaning ruler of the army, composed of the elements wald rule and hari army. The Normans brought it to England, where it replaced the Old English cognate Wealdhere.
In classical mechanics, impulse (symbolized by J or Imp) is the integral of a force, F, over the time interval, t, for which it acts. Since force is a vector quantity, impulse is also a vector in the same direction.Impulse applied to an object produces an equivalent vector change in its linear momentum, also in the same direction.he term impulse is also used to refer to a fast-acting force or impact. This type of impulse is often idealized so that the change in momentum produced by the force happens with no change in time.
stimulus. n, pl-li (-ËlaÉª; -ËliË). 1. something that stimulates or acts as an incentive. 2. (Physiology) any drug, agent, electrical impulse, or other factor able to cause a response in an organism. 3. (Psychology) an object or event that is apprehended by the senses. 4. (Pharmacology) med a former name for stimulant.