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12th century ALEXANDER NECKAM amber ancient appears Arabs Aristotle assertion Bacon became believed bodies Boyle Cabaeus Cardan cause century Chinese Descartes direction discovery doctrine draw earth effect electric electrified England Etruscans existence experiments fact field of force fire followed Franklin Galileo Gilbert glass globe Guericke hand heavens hence Hist hypothesis induction instrument invention iron Klaproth knowledge known learned Leyden jar light lodestone London Lucretius magnetic attraction matter ment merely metal modern motion moved nature navigation Neckam netic north pole observed Olaus Magnus Paolo Sarpi Paracelsus Peregrinus perhaps phenomena philosophers physical pivoted polarity Pole star Porta probably reason regarded repelled Robert Boyle Royal Society rubbed Sarpi says ships sparks sphere stone substance terrella theory things tion treatise tube turn variation vessel virtue voyages William Gilbert writing
Page 577 - I'd divide, And burn in many places ; on the top-mast. The yards, and bowsprit, would I flame distinctly, Then meet, and join. Jove's lightnings, the precursors O' the dreadful thunder-claps, more momentary And sight-out-running were not.
Page 553 - To C, standing on the floor, both appear to be electrized; for he, having only the middle quantity of electrical fire, receives a spark upon approaching B, who has an over quantity ; but gives one to A , who has an under quantity. If A and B approach to touch each other, the spark is stronger, because the difference between them is greater. After such touch there is no spark between either of them and C, because the electrical fire in all is reduced to the original equality.
Page 418 - Resolution, to reject all the amplifications, digressions, and swellings of style: to return back to the primitive purity, and shortness, when men deliver'd so many things, almost in an equal number of words. They have exacted from all their members, a close, naked, natural way of speaking; positive expressions, clear senses; a native easiness: bringing all things as near the Mathematical plainness, as they can: and preferring the language of Artizans, Countrymen, and Merchants, before that, of Wits,...
Page 28 - The gift which you possess of speaking excellently about Homer is not an art, but, as I was just saying, an inspiration; there is a divinity moving you...
Page 449 - ... to relax or unbend itself, will draw the horse as much towards the stone as it does the stone towards the horse, and will obstruct the progress of the one as much as it advances that of the other.
Page 452 - That gravity should be innate, inherent, and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man, who has in philosophical matters a competent faculty of thinking, can ever fall into it.
Page 449 - If you press a stone with your finger, the finger is also pressed by the stone. If a horse draws a stone tied to a rope, the horse (if I may...
Page 592 - Would not these pointed rods probably draw the electrical fire silently out of a cloud before it came nigh enough to strike, and thereby secure...