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actual afterwards algebra Alhazen ancient angle appears application Archimedes Aristotle astronomy attempt Bacon bodies calculation called causes centre circle colours conic sections connected considerable construction Copernican system Copernicus cultivation curve deduced degree directed discoveries distance doctrine earth eminent enquiry equations established Euclid exact experiments extended fact fluxions force Galileo genius geometers geometrical gravitation Halley Hipparchus Huyghens hyperbola idea important improvements inductive philosophy invention investigation Kepler knowledge known labours Leibnitz length light limit mathematical mathematicians means measure mechanical method method of exhaustion mind moon motion nature Newton object observations Optics orbit original parabola parallax perhaps period phenomena philosophical physical planetary planets Principia principle problems progress Ptolemy published quantity ratio rays referred refraction Regiomontanus remarkable researches solar soon speculations stars success supposed telescope theorem theory thing tion traced treatise truth Tycho Tycho Brahe whole
Page 341 - I now design to suppress. Philosophy is such an impertinently litigious lady, that a man had as good be engaged in lawsuits, as have to do with her.
Page 187 - 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...
Page 166 - 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, 290 Rivers or mountains in her spotty globe.
Page 265 - The second supposition is this, that all bodies whatsoever that are put into a direct and simple motion, will so continue to move forward in a straight line till they are, by some other effectual powers, deflected, and sent into a motion describing a circle, ellipsis, or some other more compounded curve line. The third supposition is, that these attractive powers are so much the more powerful in operating by how much the nearer the body wrought upon is to their own centres.
Page 255 - 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 and their cultivation at home and abroad.
Page 155 - I will triumph overmankind 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...
Page 351 - 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.
Page 359 - 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.