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The small physicist awoke and attempted to sit up in one gesture; bumped his head on the hammock above, and laid back down just as suddenly. "Come on down to engineering will you Ishie?" The request was spoken softly. "Hokey, dokey," said Ishie and crawled out of the narrow aperture with the agility of a monkey.
But a Russian physicist, M. Schwedoff, has gone further, and has been able by direct experiments to show that a sheath of liquid set between two solid cylinders tends, when one of the cylinders is subjected to a slight rotation, to return to its original position, and gives a measurable torsion to a thread upholding the cylinder. From the knowledge of this torsion the rigidity can be deduced.
Then the editorial quoted Judge Norman L. Carter: "'For many years, said Judge Carter, 'we have deplored the situation whereby a doctor or a physicist is not considered fully educated until he has reached his middle or even late twenties.
The United States Surgeon General's Library at Washington contains not a few of the works on medical subjects, and the New York Academy of Medicine Library has some valuable editions of certain of his works. These are of interest to the chemist and physicist rather than to the physician, and it is as a Maker of Medicine that we are concerned with Valentine here.
His admirable insight, his profound sayings carelessly thrown out, the astonishing precision of his notes and logic, were not understood; people were not aware that, under the appearances and talk of a man of the world, he explained the most complex of internal mechanisms; that his finger touched the great mainspring, that he brought scientific processes to bear in the history of the heart, the art of employing figures, of decomposing, of deducing, that he was the first to point out fundamental causes such as nationalities, climates, and temperaments, in short, that he treated sentiments as they should be treated, that is to say, as a naturalist and physicist, by making classifications and estimating forces.
If we restrict the meaning of the word in this way, we seem to strike a blow at liberal studies in general. Thus, no one would think of maintaining that the study of mathematics is not of practical value sometimes and to some persons. The physicist and the engineer need to know a good deal about mathematics. But how is it with the merchant, the lawyer, the clergyman, the physician?
The physicist and the chemist seek the laws of the physical universe, and the psychologist tried to act like them, to study the elements from which the psychical universe is composed and to find the laws which control them.
Pfeffer, by producing these walls in the interstices of a porous porcelain, has succeeded in giving them sufficient rigidity to allow measurements to be made. It must be allowed that, unfortunately, no physicist or chemist has been as lucky as these two botanists; and the attempts to reproduce semi-permeable walls completely answering to the definition, have never given but mediocre results.
These explanations are necessarily symbolistic rather than demonstrative, but any one who will seriously follow out these lines of thought, or, still better, study the attitude of the hard-headed modern physicist towards our classical geometry and mechanics, cannot fail to realize how conventional, artificial even phantasmal are the limitations set by the primitive idea of flat space and straight time.
The history of the method of measuring star diameters is a very curious one, showing how the most promising opportunities for scientific progress may lie unused for decades. The fundamental principle of the device was first suggested by the great French physicist Fizeau in 1868.
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