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 |
Dentro del libro
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Página 1
... took you into a large school and told you the names of all the children there ; even if you learnt these names by heart , you could not say you knew the children , or anything about them , beyond their names . One might be ill ...
... took you into a large school and told you the names of all the children there ; even if you learnt these names by heart , you could not say you knew the children , or anything about them , beyond their names . One might be ill ...
Página 9
... took exactly twelve hours to pass across the sky from sunrise to sunset , so then the day was twelve hours long , and the night also twelve hours ; this was called the spring equi - nox , or equal night , meaning that the day and night ...
... took exactly twelve hours to pass across the sky from sunrise to sunset , so then the day was twelve hours long , and the night also twelve hours ; this was called the spring equi - nox , or equal night , meaning that the day and night ...
Página 23
... took out the silver ball and put in the crown . Now , if the crown had been pure gold , the water would have risen only up to the mark of the gold ball , but it rose higher and stood between the gold and silver mark , showing that ...
... took out the silver ball and put in the crown . Now , if the crown had been pure gold , the water would have risen only up to the mark of the gold ball , but it rose higher and stood between the gold and silver mark , showing that ...
Página 35
... took possession of the city , and it soon ceased altogether to be Greek . You must remember that in these five chapters we have only been able to speak of some of the greatest men , and then only of a few of the discoveries they made ...
... took possession of the city , and it soon ceased altogether to be Greek . You must remember that in these five chapters we have only been able to speak of some of the greatest men , and then only of a few of the discoveries they made ...
Página 39
... took posses- sion of Alexandria in the year A.D. 639 , only seven years after the death of their great leader Mahomet . The first thing they did on taking the city was to burn the famous library of Alexandria , and it seemed as if they ...
... took posses- sion of Alexandria in the year A.D. 639 , only seven years after the death of their great leader Mahomet . The first thing they did on taking the city was to burn the famous library of Alexandria , and it seemed as if they ...
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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.