PhysicsD. Appleton & Company, 1875 - 135 páginas |
Otras ediciones - Ver todas
Términos y frases comunes
acid air-pump attracted battery bell blow boiling-point bottom brass bright bulb bulk for bulk called carbonic acid coating cold colours conductor cooled copper cubic inches cylinder drive earth elec electric machine electroscope excited glass excited sealing-wax expand EXPERIMENT fact figure fill fire flask force glass support gold leaves grains gravity hand heated body heavier hydrogen iron knob latent heat lens Leyden jar liquid magnify means melting ice mercury metal mirror motion move negative electricity nitric acid particles passes phosphorus pints piston pith ball plate platinum positive electricity pound of water pound weight pressure prism ray of light rise round rubbed scale-pan shape sheet slit solid sound spark steam stoneware strikes strong substance sulphuric acid surface temperature thermometer thing thing as gravity told touch tricity tube valve vapour velocity vessel vibrating body weight wire zinc
Pasajes populares
Página 109 - They are only partiticular instances of the fundamental law of electric action, that bodies charged with the same kind of electricity repel one another.
Página 38 - EXPERIMENT 31.—Let us now take a hollow tube of glass, open at one end and closed at the other, fill it with mercury, and...
Página 58 - ... feet. By a most unlucky coincidence, the precise focus of divergence at the former station was chosen for the place of the confessional. Secrets never intended for the public ear thus became known, to the dismay of the confessors and the scandal of the people, by...
Página 115 - ... are connected therefore becomes positively electrified. The cushions must be connected to earth to remove the negative electricity which accumulates on them. It was found that the machine acted better if the rubbers were covered with bisulphide of tin or with F. von Kienmayer's amalgam, consisting of one part of zinc, one of tin and two of mercury.
Página 40 - Most barometers are provided with a scale of inches, by which the height of the top of the column above the surface of mercury in the cistern may be accurately measured.