Four years ago Professor Albert Einstein, the good grey sage of Princeton, N. J., published an essay in which he compared science to a pyramid (TIME, March 16, 1936). At the pyramid's base are a number of unconnected sense impressions, such as that boiling water is turbulent while cold water is quiet. As progress is made up the pyramid, sense impressions are connected by theorems and syntheses which cover more & more phenomena, so that the basic statements need be fewer (the cross section of the pyramid diminishes). Such progress was made, for example, when heat was found to...
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