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Updated: May 12, 2025
Charcot took it up at the Salpetriere, in Paris, followed soon afterwards by Dr. Rudolf Heidenhain, of Breslau, and a host of other experimenters. The value of the method in the study of mental states was soon apparent. Most of Braid's experiments were repeated, and in the main his results were confirmed.
Vichy was more efficacious than Carlsbad water. Hot water was found to have an effect on the bile much like that of the mineral waters. Although Magendie is rightly considered the true initiator of experimentation upon living beings, the practice of vivisection is as old as science itself. Five centuries before him, under the Ptolemies, Egyptian experimenters had operated upon condemned persons.
The idea was not original with Bell, although he supposed that it was and was entirely unaware that, at the particular moment when he started work, about twenty other inventors were struggling with the same problem. It was one of these other twenty experimenters, Elisha Gray, who ultimately perfected this instrument.
Emerson had the largest and kindliest sympathy with their ideals and aims, but he was too clear-eyed not to see through the whims and extravagances of the unpractical experimenters who would construct a working world with the lay figures they had put together, instead of flesh and blood men and women and children with all their congenital and acquired perversities.
With the multiple winged glider some two to three hundred glides were made without any accident either to the man or to the machine, and the action was found so effective, the principle so sound, that full plans were published for the benefit of any experimenters who might wish to improve on this apparatus.
The colored liquid poured into a hole above soon appeared on the ceiling of the gallery. The experimenters were surprised to find that at night the same result was obtained, and that the liquid penetrated from the surface to the roof of the gallery even more quickly than during the day.
The Voisin was a biplane, constructed with due regard to the designs of Langley, Lilienthal, and other earlier experimenters both the Voisins and M. Colliex, their engineer, studied Lilienthal pretty exhaustively in getting out their design, though their own researches were very thorough as well.
It has been shown by some noted French experimenters, that the amount of combustion increases up to about the thirtieth year, remains stationary to about forty-five, and then diminishes. This last is the point where old age starts from. The great fact of physical life is the perpetual commerce with the elements, and the fire is the measure of it.
This peculiar coincidence of simultaneous but separate work not only comes to light on the bringing out of great and important discoveries or inventions, but becomes more apparent if a new art is disclosed, for then the imagination of previous experimenters is stimulated through wide dissemination of the tidings, sometimes resulting in more or less effort to enter the newly opened field with devices or methods that resemble closely the original and fundamental ones in principle and application.
The combination of lenses he employed is that still used in the construction of opera-glasses; the Germans still call such a combination a Dutch telescope. Doubtless a large number of experimenters took the matter up and the fame of the new instrument spread rapidly abroad.
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