Word: motionful
(lookup in dictionary)
(lookup stats)
Dates: during 1970-1979
Sort By: most recent first
(reverse)
...player permits viewers to skip ahead or back, or to repeat the same 15-sec. segment over and over again. The costlier Magnavox system is more versatile: the action on the 30-min. discs can be run in slow motion or reversed or even held in freeze-frame position...
Einstein boldly disregarded the notion of the ether. Then he went on to state two postulates: 1) An experiment can detect only relative motion, that is, the motion of one observer with respect to an other. 2) Regardless of the motion of its source, light always moves through emp ty space at a constant speed (this seems to violate common sense, which suggests that light projected forward from a moving spacecraft, like a bullet fired from a plane, would travel at a speed equal to its velocity plus that of the craft). From these statements, using thought experiments and simple...
...Einstein's new relativistic world, both time and distance are equally fickle and depend on the relative motion of observers. The only absolute remaining is the speed of light. Out of this theorizing emerged some bizarre conclusions about the effect of so-called relativistic speeds, those near the velocity of light. As an observer on earth, for example, watches a spacecraft move away at about 260,000 km (160,-000 miles) per second, time aboard the ship (assuming he is able to see the ship's clock) seems to him to move at only half the rate that it would...
Before the scientific world could even begin to digest these assertions, the journal published still another communique from the young patent examiner. Einstein had devised an equation that accounted for Brownian motion, the random, zigzagging movements of microscopic particles within liquids (named after the Scottish botanist Robert Brown, who first observed it in 1827). Einstein suggested that the specks were being jostled by molecules in the liquid, an idea that finally convinced many early 20th century skeptics of the atomic nature...
...fact, nothing quite like it had occurred since 1666, when New ton, at 23, had left Cambridge and taken refuge in Lincolnshire from the bubonic plague and in that isolation studied the spectrum of light, invented calculus and aid the groundwork for his universal theory of gravitation and motion...