By Norma Sanchez
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Extra resources for Non-Linear Equations in Classical and Quantum Field Theory
It continues its work of awarding a prize for an essay on 31 32 ◊ Chapter One is repeated that if two masses separated by a spring are affected by a gravitational wave, the two masses will move in respect of each other, and ‘‘Therefore energy may now be extracted from the wave’’ (ﬁg. 9 In practice, as the three latter papers go on to explain, at this stage the receiver was intended to be a massive, freestanding, piezoelectric crystal, rather than a metal bar with piezocrystals glued onto it. The crystal, in spite of its size, would produce only a tiny electrical impulse when affected by a gravitational wave; an extraordinarily sensitive ampliﬁer would be needed to produce anything visible (ﬁg.
If radiation is incident it will cause correlated outputs. All sources of internal ﬂuctuation will be uncorrelated’’ (p. 311). To this day, looking for correlations between two detectors is still a crucial part of the methodology of detection of gravitational waves. All three early papers go on to speculate about the possibility of generating detectable gravitational waves in the laboratory, concluding that the chances are slim. In 1961, Weber published his book, General Relativity and Gravitational Waves.
Even in ordinary life we come across such circumstances when scientiﬁc disputes enter law courts and the like. The trick is to understand the relationship between this complicated, disputable, ‘‘stormy-weather’’ kind of seeing and the ordinary, everyday, immediate-apprehension-of-the-senses, calm-weather, cup-and-saucer kind of seeing. Most people have the relationship the wrong way around. They think that cup-and-saucer, calm-weather seeing is the basic kind of seeing, and they spend their time marveling at the cleverness of scientists who seem to make stormy-weather seeing so secure and certain.
Non-Linear Equations in Classical and Quantum Field Theory by Norma Sanchez