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He added to it new experiments of his own, and finally decided in favour of the 'Identity of Electricities. His paper upon this subject was read before the Royal Society on January 10 and 17, 1833. After he had proved to his own satisfaction the identity of electricities, he tried to compare them quantitatively together.

The experiments of two Frenchmen, Hippolyte L. Fizeau and Leon Foucault, served finally to convince the last lingering sceptics that light is an undulation; and by implication brought heat into the same category, since James David Forbes, the Scotch physicist, had shown in 1837 that radiant heat conforms to the same laws of polarization and double refraction that govern light.

It might not be the same headache, but she certainly had a headache. She turned from side to side, in the hope that the coolness of the sheets would cure her, and that when she next opened her eyes to look the room would be as usual. After a considerable number of vain experiments, she resolved to put the matter beyond a doubt.

I will do all this, if, in return, but for one month you will give yourself up to my guidance in whatever experiments I ask, no matter how wild they may seem to you."

When I had accomplished this, it was fully midnight, and I requested the gentlemen present to examine M. Valdemar's condition. After a few experiments, they admitted him to be an unusually perfect state of mesmeric trance. The curiosity of both the physicians was greatly excited. Dr. D resolved at once to remain with the patient all night, while Dr.

The extraordinary inefficiency of the good-old-fashioned-womanly woman as a wife on a small income, the silly pretences which showed her want of proper self-respect, and the ill-adjusted balance of her undeveloped mind which betrayed itself in petty inconsistencies, fill us with pity and surprise us, yet encourage us too by proving how right and wise we were to try our own experiments.

It may happen that at high velocities the adhesion is overcome, so that the water is dragged off the vessel, and the friction thereafter follows the law which obtains in the case of solid bodies. But any such conclusion is mere speculation, since no experiments illustrative of this question have yet been made.

A machine he had seen in Paris for tracing and multiplying the dies of medals, suggested the other. After much labor and many experiments he did get some measure of success, and made a large head of Locke in yellow wood, and a small head of his friend Adam Smith.

Steele thought, after mature consideration, that he could accomplish all these objects, and he resolved to make the experiments gradually upon his own estates. At the end of the year 1783 he put the first of these questions to trial.

Such a coincidence cannot be fortuitous, and we have the right to believe that the electron revealed by the luminous wave which emanates from it, is really the same as the one made known to us by the study of the cathode rays and of the radioactive substances. However, the elementary theory does not suffice to interpret the complications which later experiments have revealed.