A History of Science, Book 2

alchemist alchemy Alhazen angle appear Arabian Arabs arteries astrologer astronomer atmosphere attracted Bacon ball barometer believed blood bodies centre century color Copernican Copernicus course demonstration discovered discovery diseases distance doctrine Dufay earth electricity electrified equal experiments fact famous feet field force Franklin Galen Galileo glass globe gold gravity Guericke Harvey Hauksbee Hooke Huygens idea important inches invention investigations JOHANN KEPLER Jupiter Kepler later leaf-brass length lenses Leyden jar ligature light Linnæus magnet matter measuring medicine ment mercury metal method modern moon motion natural Newton observed orbit Otto von Guericke Paracelsus pendulum philosophers physicians planetary planets practical prism produced proved quantity rays refraction repelled Robert Hooke Royal Society rubbed Saturn says scientific scientists seems silk stars Stevinus stone substances surface suspended telescope theory thread tion tricity tube Tycho Tycho Brahe universe veins Vesalius weight wire writings