A Short History of Natural Science and of the Progress of Discovery: From the Time of the Greeks to the Present Day : for the Use of Schools and Young PersonsD. Appleton, 1886 - 467 páginas |
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Página xxiii
... once covered with Ice - Boucher de Perthes on Ancient Flint Implements - McEnery on Flint Im- plements in Kent's Cavern , with Bones of Extinct Animals- Swiss Lake - dwellings — Antiquity of Man ' CHAPTER XL . • • PAGE SCIENCE OF THE ...
... once covered with Ice - Boucher de Perthes on Ancient Flint Implements - McEnery on Flint Im- plements in Kent's Cavern , with Bones of Extinct Animals- Swiss Lake - dwellings — Antiquity of Man ' CHAPTER XL . • • PAGE SCIENCE OF THE ...
Página 11
... once have been there . He had also probably watched the sea eating away the cliffs on the shores of Italy , as you may see it doing now on the shores of Norfolk and Suffolk ; and when he was in Egypt he must have seen the Nile carrying ...
... once have been there . He had also probably watched the sea eating away the cliffs on the shores of Italy , as you may see it doing now on the shores of Norfolk and Suffolk ; and when he was in Egypt he must have seen the Nile carrying ...
Página 13
... once heard to say that he was born to con- template the sun , moon , and heavens . Although there were no telescopes in those days , he managed to observe that there were mountains , plains , and valleys in the moon . He believed it to ...
... once heard to say that he was born to con- template the sun , moon , and heavens . Although there were no telescopes in those days , he managed to observe that there were mountains , plains , and valleys in the moon . He believed it to ...
Página 22
... once , and to make it balance you will have to shift the ruler and make the light end twice as long , because the heavy end has twice the weight upon it . Put a three ounce , and you must again lengthen the light end to three times the ...
... once , and to make it balance you will have to shift the ruler and make the light end twice as long , because the heavy end has twice the weight upon it . Put a three ounce , and you must again lengthen the light end to three times the ...
Página 54
... once how important this discovery was ; for when a ship is at sea , far from land , there is nothing to guide the captain except the stars , and they cannot always be seen , so that before he had a compass he was obliged to keep in ...
... once how important this discovery was ; for when a ship is at sea , far from land , there is nothing to guide the captain except the stars , and they cannot always be seen , so that before he had a compass he was obliged to keep in ...
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Términos y frases comunes
acid Alhazen anatomy animals astronomers attraction battery began bodies born calculations called cause CENTURY CONTINUED Charles Lyell chemical chemistry chemists colours comet Cuvier cylinder dark died discovered discoveries earth eighteenth century electric current Encyclopædia Encyclopædia Britannica Erasistratus exactly experiments explained facts famous formed fossils Galileo Galvani Geber Geology glass globe going gravitation Greeks Haller heat Herschel Hipparchus Huyghens hydrogen invented John Herschel Jupiter Kepler Lagrange Lamarck Laplace lines Linnæus living magnet mercury metals meteors moon moving round named Natural needle Newton observations orbit oxygen pass phlogiston piece piston planets prism produced Professor proved Ptolemy refracted remember rocks round the sun showed side spectrum St.-Hilaire stars steam substances telescope theory tion transit of Venus tricity tube turned Uranus Venus Vesalius vibrations Voltaic Pile Watt waves weight wire young
Pasajes populares
Página 125 - Our business was (precluding matters of Theology and state affairs) to discourse and consider of Philosophical Enquiries, and such as related thereunto : as physick, anatomy, geometry, astronomy, navigation, staticks, magneticks, chymicks, mechanicks, and natural experiments ; with the state of these studies, as then cultivated at home and abroad.
Página 101 - ... that the squares of the periodic times of the planets are proportional to the cubes of their mean distances from the sun.
Página 125 - Saturn, the spots in the sun, and its turning on its own axis", the inequalities and selenography of the moon, the several phases of Venus and Mercury, the improvement of telescopes, and grinding of glasses for that purpose, the weight of air, the possibility, or impossibility of vacuities, and nature's abhorrence thereof, the Torricellian experiment in quicksilver, the descent of heavy bodies, and the degrees of acceleration therein ; and divers other things of like nature.
Página 234 - The feeling of it to my lungs was not sensibly different from that of common air ; but I fancied that my breast felt peculiarly light and easy for some time afterwards. Who can tell but that, in time, this pure air may become a fashionable article in luxury Hitherto only two mice and myself have had the privilege of breathing it."* * Dr.
Página 170 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.