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 11
... remarkable truths taught by Pytha- goras were about geology , or the study of the earth . He noticed that seashells were sometimes to be found far inland imbedded in solid ground in a way that showed they were not brought there by man ...
... remarkable truths taught by Pytha- goras were about geology , or the study of the earth . He noticed that seashells were sometimes to be found far inland imbedded in solid ground in a way that showed they were not brought there by man ...
Página 15
... remarkable guess that the beautiful bright band called the ' Milky Way , ' which stretches every evening right across the sky , is composed of millions of stars scattered like dust over the heavens . Aristotle , 384 , one of the most ...
... remarkable guess that the beautiful bright band called the ' Milky Way , ' which stretches every evening right across the sky , is composed of millions of stars scattered like dust over the heavens . Aristotle , 384 , one of the most ...
Página 22
... is said to have exclaimed : ' Give me a place on which to stand , and I will raise the world . ' Another remarkable discovery made by Archimedes con- CH , III . HIERO'S CROWN . 23 cerns the 22 PT . I. SCIENCE OF THE GREEKS .
... is said to have exclaimed : ' Give me a place on which to stand , and I will raise the world . ' Another remarkable discovery made by Archimedes con- CH , III . HIERO'S CROWN . 23 cerns the 22 PT . I. SCIENCE OF THE GREEKS .
Página 44
... remarkable experiment , though he did not thoroughly understand it . He states in his book that if you take a certain weight , say a pound , of iron , lead , or copper , and heat it in an open vessel , the metal will weigh more after it ...
... remarkable experiment , though he did not thoroughly understand it . He states in his book that if you take a certain weight , say a pound , of iron , lead , or copper , and heat it in an open vessel , the metal will weigh more after it ...
Página 58
... remarkable for the number of interesting inventions which he made in mechanics . Leonardo was born in 1452 at Vinci , in Tuscany ; he is so generally spoken of as a painter that many people do not know that he left behind him fourteen ...
... remarkable for the number of interesting inventions which he made in mechanics . Leonardo was born in 1452 at Vinci , in Tuscany ; he is so generally spoken of as a painter that many people do not know that he left behind him fourteen ...
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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.