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.
Impulse conduction-an impulse is simply the movement of action potentials along a nerve cell. Action potentials are localized (only affect a small area of nerve cell membrane). So, when one occurs, only a small area of membrane depolarizes (or 'reverses' potential).he human nervous system consists of billions of nerve cells (or neurons)plus supporting (neuroglial) cells. Neurons are able to respond to stimuli (such as touch, sound, light, and so on), conduct impulses, and communicate with each other (and with other types of cells like muscle cells).