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History of natural philosophy, from the earliest periods to the present time
Uten tilgangsbegrensning - 1842
History of Natural Philosophy from the Earliest Periods to the Present Time ...
Uten tilgangsbegrensning - 1837
actual adopted advance already ancient appears application areas astronomy attempt attention bodies called causes centre circle colours common complete connected considerable considered construction continued course curve determined directed discoveries discussion distance earth effect enquiry equal equations established existence experiments express extended fact followed force Galileo genius geometrical give given idea important improvements instance invention involved Italy Kepler kind knowledge known labours length less light limit lines mathematical matter means measure mentioned method mind moon motion nature nearly Newton noticed object observations orbit original particular perhaps period philosophical physical planets present principle probably problems progress published quantity question rays reasoning referred refraction relation remarkable researches respect seems showed simple soon speculations studies success supposed theory thing tion traced truth various whole writings
Side 183 - This therefore being granted, methinks that in the discussion of natural problems we ought not to begin at the authority of texts of Scripture, but at sensible experiments and necessary demonstrations...
Side 164 - He scarce had ceased, when the superior fiend Was moving toward the shore: his ponderous shield, Ethereal temper, massy, large, and round, Behind him cast; the broad circumference Hung on his shoulders like the moon, whose orb Through optic glass the Tuscan artist views, At evening, from the top of Fesole, Or in Valdarno, to descry new lands, Rivers, or mountains, in her spotty globe.
Side 153 - I will indulge in my sacred fury ; I will triumph over mankind by the honest confession, that I have stolen the golden vases of the Egyptians*, to build up a tabernacle for my God far away from the confines of Egypt. If you forgive me, I rejoice; if you are angry, I can bear it: the die is cast, the book is written ; to be read either now or by posterity, I care not which : it may well wait a century for a reader, as God has waited six thousand years for an observer.
Side 327 - Newton came from chapel, and had seen what was done, every one thought he would have run mad, he was so troubled thereat that he was not himself for a month after.
Side 333 - I know not what the world will think of my labours, but to myself it seems that I have been but as a child playing on the sea-shore; now finding some pebble rather more polished, and now some shell rather more agreeably variegated than another, while the immense ocean of truth extended itself unexplored before me.
Side 262 - I was so persecuted with discussions arising from the publication of my theory of light, that I blamed my own imprudence for parting with so substantial a blessing as my quiet, to run after a shadow.
Side 226 - Torricelli, who> though younger than Galileo, was for some time his contemporary. He proved that water issues from a hole in the side or bottom of a vessel, with the velocity which a body would acquire, by falling from the level of the surface to the level of the orifice.
Side 49 - The two problems of the duplication of the cube and the trisection of an angle...
Side 177 - One forms however," says Playfair, " a very imperfect idea of this philosopher from considering the discoveries and inventions, numerous and splendid as they are, of which he was the undisputed author. It is by following his reasonings, and by pursuing the train of his thoughts, in his own elegant, though somewhat diffuse exposition of them, that we become acquainted with the fertility of his genius, with the sagacity, penetration, and comprehensiveness of his mind. The service which he rendered...
Side 145 - ... home and plough his fields: and as often as he lifts up to this goodly heaven those eyes with which alone he is able to see, let him pour out his heart in praises and thanksgiving to God the Creator ; and let him not fear but he is offering a worship not less acceptable than his to whom God has granted to see yet more clearly with the eyes of his mind, and who both can and will praise his God for what he has so discovered.