The Bases of Modern ScienceE. Benn, 1928 - 246 páginas |
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Página 85
... rays , " which are shorter than the shortest X - Rays . But we see that , even a century ago , the two great phenomena of light and heat were linked up , in certain aspects at least , in one great generalization . This generalization ...
... rays , " which are shorter than the shortest X - Rays . But we see that , even a century ago , the two great phenomena of light and heat were linked up , in certain aspects at least , in one great generalization . This generalization ...
Página 126
... X - rays through it . It is natural to suppose that we are here concerned with the same phenomenon that occurs in 126 THE BASES OF MODERN SCIENCE.
... X - rays through it . It is natural to suppose that we are here concerned with the same phenomenon that occurs in 126 THE BASES OF MODERN SCIENCE.
Página 127
... X - rays , or the red - hot body , dissociates some of the molecules of the gas into ions and that , under the influence of an electric force , we get a double drift of these ions , as in electrolysis . This view was quite clearly ...
... X - rays , or the red - hot body , dissociates some of the molecules of the gas into ions and that , under the influence of an electric force , we get a double drift of these ions , as in electrolysis . This view was quite clearly ...
Página 138
... X - rays were infra - red rays , and some thought they were cathode rays that had somehow been " sifted " from the others . What turned out to be the correct theory was put forward by Schuster a month after Röntgen pub- lished his ...
... X - rays were infra - red rays , and some thought they were cathode rays that had somehow been " sifted " from the others . What turned out to be the correct theory was put forward by Schuster a month after Röntgen pub- lished his ...
Página 139
... X - rays was invented . The most satis- factory way of doing this would be by passing them through a " diffraction grating , " which usually con- sists of a number of lines ruled very close together on a piece of glass . Such an ...
... X - rays was invented . The most satis- factory way of doing this would be by passing them through a " diffraction grating , " which usually con- sists of a number of lines ruled very close together on a piece of glass . Such an ...
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Términos y frases comunes
a-particle actual ćther assume assumption atomic number atomic weight behaviour body Bohr atom Bohr's calculated called cathode rays characteristics chemical chlorine concepts constitution deduced described distance earth effects Einstein's theory electric charge electric current electromagnetic electron elementary charge elements equations ether ether theory Euclid's Euclidean Euclidean geometry exist experimental experiments explain fact Faraday finite fluid force of gravitation fundamental Galileo geometry heat helium hydrogen atom hypothesis inertia ions J. J. Thomson Kepler laws lines of force magnetic force mass mathematical description mathematicians matter Maxwell Maxwell's measured mechanical merely metal molecules moving nature Newton Newtonian non-Euclidean geometry nucleus observed orbits particles pass perceptions phenomena phenomenon physical planets positively charged possessed principle properties quantity quantum radiation radium regarded relative motion rotating scientific space-time continuum straight line structure substance suppose temperature theory of relativity tube universe vacuum tube velocity of light vibrations wave theory wave-length whole X-rays
Pasajes populares
Página 22 - It seems probable to me that God in the beginning formed matter in solid, massy, hard, impenetrable, moveable particles, of such sizes and figures, and with such other properties, and in such proportion to space, as most conduced to the end for which he formed them...
Página 28 - Absolute, true, and mathematical time, of itself, and from its own nature, flows equably without relation to anything external, and by another name is called duration...
Página 28 - Absolute space, in its own nature, without regard to anything external, remains always similar and immovable. Relative space is some movable dimension or measure of the absolute spaces; which our senses determine by its position to bodies; and which is commonly taken for immovable space...
Página 33 - At first, when the relative motion of the water in the vessel was greatest, it produced no endeavour to recede from the axis; the water showed no tendency to the circumference, nor any ascent towards the sides of the vessel, but remained of a plain surface, and therefore its true circular motion had not yet begun. But afterwards, when the relative motion of the water had decreased, the ascent thereof towards the sides of the vessel proved its endeavour to recede from the axis; and this endeavour...
Página 29 - ... cavity which the body fills and which therefore moves together with the ship, and relative rest is the continuance of the body in the same part of the ship or of its cavity. But real, absolute rest is the continuance of the body in the same part of that immovable space in which the ship itself, its cavity, and all that it contains is moved.
Página 32 - The effects which distinguish absolute from relative motion are, the forces of receding from the axis of circular motion. For there are no such forces in a circular motion purely relative, but in a true and absolute circular motion, they are greater or less, according to the quantity of the motion.
Página 76 - It is impossible by means of inanimate material agency to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects.
Página 42 - Seeing therefore the variety of Motion which we find in the World is always decreasing, there is a necessity of conserving and recruiting it by active Principles...
Página 46 - Others may suppose it multitudes of unimaginable small and swift corpuscles of various sizes springing from shining bodies at great distances one after another, but yet without any sensible interval of time...
Página 29 - But if the earth also moves, the true and absolute motion of the body will arise, partly from the true motion of the earth, in immovable space; partly from the relative motion of the ship on the earth...