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acceleration alternating current ampères angular angular velocity armature axis ball beam body Boyle's law bulb calorimeter cell center of pressure centimeter circuit coil compressed condenser conductor connected constant copper cord curve cylinder density diagram direction discharge displacement distance dynes earth elasticity electric electromotive force electroscope energy equal equilibrium flow focal length friction galvanometer gases glass gram gravity heat induction iron J. J. Thomson lens Leyden jar light lines of force liquid magnetic field mass measured mercury metal mirror molecules moment of inertia motion moving needle number of lines parallel particles pass pendulum pipe piston placed plane plate polarized pole pressure prism radiation rays reflected refracted resistance right angles rotation shown in figure side spectrum stream substance surface temperature tones tube vapor velocity vessel vibration volume wave length weight wire
Page 275 - It is hardly necessary to add that anything which any insulated body or system of bodies can continue to furnish without limitation cannot possibly be a material substance ; and it appears to me to be extremely difficult, if not quite impossible, to form any distinct idea of anything capable of being excited and communicated in the manner in which heat was excited and communicated in these experiments except it be motion.
Page 103 - The squares of the periodic times of the planets are proportional to the cubes of their mean distances from the Sun.
Page 118 - Archimedes stated that a body immersed in a fluid is buoyed up by a force equal to the weight of the displaced fluid.
Page 165 - We conclude that equal volumes of different gases at the same temperature and pressure contain equal numbers of molecules.
Page 7 - The straight line or distance between the centres of the transverse lines in the two gold plugs in the bronze bar deposited in the Office of the Exchequer...
Page 272 - Hypothesis states that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.
Page 22 - Change of momentum is proportional to the force and to the time during which it acts, and is in the same direction as the force; (3) To every action there is an equal and opposite reaction.
Page 32 - ... the perpendicular distance from the axis to the line of action of Axis FIG.