Word: zeroing
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...were bombing a loyalist munitions storehouse, and for several minutes the air was full of death-dealing missiles, which fell in large numbers all around the arsenal, but somehow or other failed either to hit their objective or even to explode when they crashed on the ground. When the zero hour was over, the loyalist troops rushed out to investigate and carefully opened all the "dud" explosives that had fallen. Inside each projectile were large quantities of sand, and in each was a polite note saying, "These bombs won't explode. Greetings to our dear comrades from their German friends...
...mathematical argument. Dr. Kellogg accused Dr. Rhine of underestimating the chance probability of high scores. He declares that the normal probability curve, used by Dr. Rhine, requires for proper operation chance scores as far below the average as good scores go above it. That would require some scores below zero-an absurdity. He also charges that Dr. Rhine evaluates only favorable scores, ignoring others; that he pays no attention to the internal inconsistency of his results; that the presence of sensory cues or some other extraneous factor is indicated by higher scores when conditions are such that the chance...
...decibel is an arbitrary unit such that, starting from the zero level or threshold of hearing, each increase of one decibel represents an increase of 25% in the physical intensity of the sound. The human ear has an enormous range. It is not pained by loudness until the sound is about ten trillion times as intense as a whisper at the threshold of hearing. Thus it is not very sensitive to small intensity changes. The decibel is intended to represent roughly the smallest intensity change which the ear can detect...
...subjective measure of its apparent loudness to the ear. There has been some difficulty with phons in international exchanges of research results because in the U. S. the decibel was generally used as a loudness unit as well as an intensity unit and in England and Germany different zero levels, different frequencies for the reference tone and different listening techniques were in use. At a recent international conference in Paris these differences were ironed out and a standard phon scale agreed on involving a uniform listening technique, reference tone, and zero level. Some loudnesses measured on this scale are: ticking...
Died. Osgood Perkins, 45, suave stage and screen actor (Beggar on Horseback, The Front Page, Tomorrow and Tomorrow, Ceiling Zero, Point Valaine, etc.); of a heart attack after the opening performance of Rachel Crothers' Susan and God, in Washington...