Category: Biographies
The ancients laid down the laws of literary form in prose as well as in verse, and bequeathed to posterity works which still serve as models of excellence. Their poets and historians continue to be read for the sake of the narrative and beauty of the style; their philosophers...
As already seen, the writers of Greece and Rome knew little about the lodestone; we have now to add that the knowledge of electricity which they possessed was of the same elemen...
15. CHAPTER XII.Few men lived to witness so many remarkable discoveries in science and so many applications of the same to the welfare of the race as did the man whose name stands at the head o...
12. CHAPTER IX.Lord Kelvin, himself one of the greatest of the electrical scientists of the nineteenth century, in commenting some years ago on Ohm's law, said that it was such an extremely si...
13. CHAPTER X.The maxim current among European scientists, that it is well to wait before accepting any scientific discovery to see what will be said about it on the other side of the Rhine,...
7. CHAPTER IV.It is a well-known fact, often commented on in the history of medicine, that Harvey, the discoverer of the circulation of the blood, did not give the details of his discovery to...
14. CHAPTER XI.Natural science in every department developed very wonderfully from its experimental side during the first half of the nineteenth century. Facts and observations accumulated to...
8. CHAPTER V.Up to the end of the eighteenth century, discoverers in electrical science had usually been students of science in other departments, whose attention to electricity had been att...
11. CHAPTER VIII.Few men of the nineteenth century are so interesting as André Marie Ampère, who is, as we have seen, deservedly spoken of as the founder of the science of electro-dynamics. Extr...
10. CHAPTER VII.Whatever may be thought of the value of controversy in other departments of knowledge, it has certainly proved useful in the progress of experimental science. Witness the animat...
5. Book IV., he adds that, "in the heart of great continents there is noAs continents and mountain-chains are among the permanent features of our planet, Gilbert concluded that the misdirection of the needle was likewise permanent or constant at any...
4. CHAPTER II.We have seen that in the thirteenth century the directive property of the lodestone was recognized by Peregrinus and used by him in his pivoted compass; and that in the fifteent...
1. CHAPTER I.The ancients laid down the laws of literary form in prose as well as in verse, and bequeathed to posterity works which still serve as models of excellence. Their poets and histo...
9. CHAPTER VI.Great discoverers in science must usually be satisfied with having their names attached to some one phase of scientific development, be it an instrument, a law, a unit of measur...
3. PART II.Chap. I. Construction of an instrument for measuring the azimuth of the sun, the moon or any star when in the horizon. II. Construction of a better instrument for the same purpo...
2. PART I.Chap. I. Purpose of this work. II. Qualifications of the experimenter. III. Characteristics of a good lodestone. IV. How to distinguish the poles of a lodestone. V. How to tell...