Essentials of physicsW.B. Saunders, 1896 - 319 pages |
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Page 25
... move a little from side to side . In liquids the motion may be like men moving through a crowd , and in gases like gnats in the air . What is a mass ? A mass is a collection of molecules appreciable by the senses . What is porosity ...
... move a little from side to side . In liquids the motion may be like men moving through a crowd , and in gases like gnats in the air . What is a mass ? A mass is a collection of molecules appreciable by the senses . What is porosity ...
Page 35
... move uniformly forward in a straight line with unchanged velocity . If , therefore , it moves in any other path , as a circle , it must be due to some force which continually deviates it . In swinging a stone in a sling , if the string ...
... move uniformly forward in a straight line with unchanged velocity . If , therefore , it moves in any other path , as a circle , it must be due to some force which continually deviates it . In swinging a stone in a sling , if the string ...
Page 145
... Move the lamp till the two shadows are equal , and note how much farther FIG . 55 . away it is than the standard candle . If twice as far , its intensity is four times as great as that of the candle . Bunsen's photometer depends upon ...
... Move the lamp till the two shadows are equal , and note how much farther FIG . 55 . away it is than the standard candle . If twice as far , its intensity is four times as great as that of the candle . Bunsen's photometer depends upon ...
Contents
BOOK I | 17 |
The Attractions of Matter | 26 |
Matter Force and Motion | 33 |
37 other sections not shown
Common terms and phrases
acid ampères angle aperture armature attraction axis barometer battery body called camera carbon cell chemical ciliary muscle circuit coil collodion colors concave condensing conductor connected containing convex convex lens cornea crystalline lens Describe direction disk dynamo electricity electro-magnet electrolysis eye-piece film focus force galvanometer gases gelatin glass gun-cotton H₂SO heat heliostat hydrometer induced currents induction instrument intensity iron Jefferson Medical College Leclanché cell lens lenses Leyden jar light liquid luminous machine magnet magnified Medical metal microscope mirror molecules motion needle negative object optic paper paper negatives parallel passes Philadelphia picture placed platinum polarized pole presbyopia pressure principle prints prism produced quantity rays reflected refraction resistance retina silver solid sound spectrum Spherical aberration substances surface Surgery telescope temperature Text-Book thermometer tion transmitted tube vapor velocity vessel vibrations vitreous humor voltaic volume weight wire