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Pàgina 67 - That gravity should be innate, inherent and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking, can ever fall into it.
Pàgina 176 - The Ancient Stone Implements, Weapons, and Ornaments of Great Britain. By JOHN EVANS, FRS With 2 Plates and 476 Woodcuts. 8vo.
Pàgina 175 - Contributions to Molecular Physics in the domain of Radiant Heat ; a Series of Memoirs published in the Philosophical Transactions, &c.
Pàgina 7 - Do not suppose that I was a very deep thinker, or was marked as a precocious person. I was a very lively, imaginative person, and could believe in the Arabian Nights as easily as in the Encyclopaedia ; but facts were important to me and saved me.
Pàgina 174 - FRAGMENTS OF SCIENCE FOR UNSCIENTIFIC PEOPLE. A Series of Detached Essays, Lectures, and Reviews.
Pàgina 174 - In thus clearly and sharply stating the fundamental principles of Electrical and Optical Science, Prof. Tyndall has earned the cordial thanks of all interested in education."— From AMERICAN EDITOR'S PREFACE.
Pàgina 63 - ... be produced which shall go on for ever against a constant resistance, or only be stopped, as in the voltaic trough, by the ruins which its exertion has heaped up in its own course. This would indeed be a creation of power, and is like no other force in nature. We have many processes by which...
Pàgina 81 - I have long held an opinion, almost amounting to conviction, in common I believe with many other lovers of natural knowledge, that the various forms under which the forces of matter are made manifest have one common origin; or, in other words, are so directly related and mutually dependent, that they are convertible, as it were, one into another, and possess equivalents of power in their action.
Pàgina 6 - I entered the shop of a bookseller and bookbinder at the age of 13, in the year 1804, remaining there eight years, and during the chief part of the time bound books. Now it was in those books, in the hours after work, that I found the beginning of my philosophy. There were two that especially helped me, the
Pàgina 174 - In the following pages I have tried to render the science of Acoustics interesting to all intelligent persons, including those who do not possess any special scientific culture.

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