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acting air contained apparent weight applied ascend ascertained atmospheric pressure Bacon ball balloon barometer barrel body bottom bulk for bulk buoyancy cause centre of gravity cistern column of water condensed continue cubic inch cylinder depth descend dimensions diminished direction discharge displaced effect elastic force elevation equal equilibrium experiment explained feet filled float force pipe glass grains greater heat heavier Hence hundredth hydrometer hydrostatic hydrostatic pressure immersed inch of mercury increased inquiry instances Instantia instrument less Let us suppose lighter liquid Lord Bacon magnitude manner mercury motion mouth moving nature necessary observed Organon orifice particles perpendicular piston placed position pounds pressed principle produced proportion pump raised rarefaction receiver represented in fig resistance rise screw sides sink solid space specific gravity square inch stopcock stratum substance suction surface F syringe temperature tendency tion transmitted tube upwards valve velocity vessel weight wheel
Page 59 - I had rather believe all the fables in the Legend, and the Talmud, and the Alcoran, than that this universal frame is without a mind.
Page 40 - BA, will press on the liquid in the horizontal tube, with a force equal to the weight of a column of the liquid whose height is BD, and whose base is equal to the section of the tube at B.
Page 171 - Black had begun. Our knowledge of the conditions under which matter passes abruptly from the gaseous to the liquid and from the liquid to the solid state may now be regarded as almost complete.
Page 114 - ... the solid will admit, is filled to a certain mark with distilled water ; the substance is then set to float in it, and the point to which the surface of the water rises in the vessel accurately marked : the body is then totally submerged, and the point to which the surface of the water rises again observed. The elevations of the surface produced by the partial and total submersion, indicate the portions of the solid in each case immersed, and are therefore in the ratio of the specific gravity...
Page 252 - ... will be proportional to the excess of the pressure of the condensed air above the weight of the column of water, whose height is equal to the elevation of the end of the hose above the level of the water in the air vessel.
Page 203 - In sultry weather, the fall of the mercury indicates coming thunder. In winter the rise of the mercury indicates frost. In frost, its fall indicates thaw, and its rise indicates snow.
Page 52 - Descartes extended the limits of geometry as far beyond the place where he found them, as Sir Isaac did after him. The former first taught the method of expressing curves by equations. This geometry which, thanks to him for it, is now grown common, was so abstruse in his time, that not so much as one professor would undertake to explain it; and Schotten in Holland, and...
Page 4 - When we speak of forms, we understand nothing more than the laws and modes of action which regulate and constitute any simple nature, such as heat, light, weight, in all kinds of matter susceptible of them ; so that the form of heat, or the form of light, and the law of heat, and the law of light, are the same thing.
Page 64 - We may safely affirm, that, by giving the Inductive Philosophy to the world, Lord Bacon has proved one of its most signal benefactors, and has largely done his part towards promoting the final triumph of all truth, whether natural, or moral and intellectual, over all error; and towards bringing on that glorious crisis, destined, we doubt not, one day to arrive, when, according to the allegorical representation of that great poet, who was not only the Admirer of Bacon, but in some respects his kindred...