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The scientists, on the other hand, felt that the far-reaching practical effect which came from their discoveries exerted a stimulating influence on the theoretical researches themselves. The pure search for truth and knowledge was not lowered when the electrical waves were harnessed for wireless telegraphy, or the Roentgen rays were forced into the service of surgery.
But you understand." "Perhaps a Roentgen ray might be got to do it," said my friend, thoughtfully, "or perhaps this author may bring his mind to bear upon it yet. He seems to have considered every kind of advertising except book-advertising." "The most important of all!" I cried, impatiently. "You think so because you are in that line.
To quote the words of Sir J.J. Thompson, "The transparency of bodies to Roentgen rays, to cathode rays, to the rays emitted by radioactive substances, the quality of the secondary radiation emitted by the different elements, are all determined by the atomic weight of the element." Just recently we have had opened up before us a still more intimate inner-circle view of the composition of matter.
Such incidents brought out in narration the fact that many of the men working with him had been less fortunate, particularly those who had experimented with the Roentgen X-ray, whose ravages, like those of leprosy, were responsible for the mutilation and death of at least one expert assistant. In the early days of work on the incandescent lamp, also, there was considerable trouble with mercury.
Becquerel had no idea of such radiations, had never thought of their possibility. In the early days of the Roentgen rays there were many facts which suggested that phosphorescence had something to do with the production of these rays It then occurred to several French physicists that X-rays might be produced if phosphorescent substances were exposed to sunlight.
Ten years ago the atoms of matter, of which it takes millions of millions to make a drop of water, were the minutest objects with which science could imagine itself to be concerned, Now a body of experimentalists, prominent among whom stand Professors J. J. Thompson, Becquerel, and Roentgen, have demonstrated the existence of objects so minute that they find their way among and between the atoms of matter as rain-drops do among the buildings of a city.
March could not allow that they would do so; or at least that the name of Roentgen would ever lend more lustre to his city than that of Longfellow's Walther von der Vogelweide. She was no less surprised than pleased to realize that this friend of the birds was a Wurzburger, and she said that their first pilgrimage in the morning should be to the church where he lies buried.
From that time no information was received directly from him; but Major Denham many years afterwards learned that he had penetrated as far as Nyffe on the Niger, where he fell a victim to disease. Another German, Roentgen, also sent out by the Association in 1809, started from Mogadore and, it is supposed, was murdered by his guides.
There was a striking illustration of this in 1913 when the Kaiser had Hauptmann's historical play suppressed because it represented Frederick William III. in true light, as putty in the hands of Napoleon. There is a small group of German professors interested solely in scientific research, such as Professor Roentgen and the late Professor Ehrlich, which we exclude from the "puppet professors."
The director shook his head with a sigh. "Who can tell?" he said softly. "The marks " The baroness's eyes glowed dangerously. "I did not suppose you could tell," she said curtly. The young scientist interposed. "It is a case for science," he said quickly. "You shall see the Roentgen rays will tell. The shutters Berthold." The assistant closed them, one by one, the heavy wooden shutters.
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