Natural PhilosophyJ.B. Lippincott, 1883 - 350 pages |
Other editions - View all
Common terms and phrases
air-pump angle angle of incidence atmosphere attraction ball battery body bottom called causes centre of gravity centrifugal force clouds coil colors condensation CONVEX LENS current electricity cylinder direct current direction discharge distance earth effect electric current electricity electrified electro-magnet energy Exercises.-1 Experiment fall feet flow force friction glass heat Hence insulating inversely iron length lens lever Leyden jar light liquid machine magnet mercury metal metres miles mirror molecules motion move needle negative number of vibrations object opening parallel particles pass pendulum piano piece piston pitch plate pole position pressure prime conductor produce pulley radiation raised rays reflected refracted resistance screw seen shellac shown in Fig shows side solid sound sound-waves specific gravity spectrum square steam string surface temperature thermometer tin-foil tion tricity tube vapor velocity vessel weight wheel wind wire zinc
Popular passages
Page 274 - I went into the cube and lived in it, and using lighted candles, electrometers, and all other tests of electrical states, I could not find the least influence upon them, or indication of anything particular given by them, though all the time the outside of the cube was powerfully charged, and large sparks and brushes were darting off from every part of its outer surface.
Page 21 - Newton's three laws: a body at rest remains at rest, and a body in motion remains in uniform motion in a straight line unless acted upon by an external force...
Page 61 - A wheel and axle is used to raise a bucket from a well. The radius of the wheel is 15...
Page 133 - Nothing can be more surprising,' writes Sir John Herschel, in reference to this subject, 'than to see two persons, neither of them deaf, the one complaining of the penetrating shrillness of a sound, while the other maintains there is no sound at all.