PhysicsAppleton, 1878 - 149 páginas |
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... experiments has been devised , leading up to the chief truths of each science . These experiments must be performed by the teacher in regular order before the class . The power of observation in the pupils will thus be awakened and ...
... experiments has been devised , leading up to the chief truths of each science . These experiments must be performed by the teacher in regular order before the class . The power of observation in the pupils will thus be awakened and ...
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... Experiments - Electroscope Action of Points . Change of state , with table of melting - points . Latent heat of Water of Steam Ebullition and Evaporation Boiling - point depends on pressure • • ART . PAGE 54 70 55 71 56 72 57 72 58 75 ...
... Experiments - Electroscope Action of Points . Change of state , with table of melting - points . Latent heat of Water of Steam Ebullition and Evaporation Boiling - point depends on pressure • • ART . PAGE 54 70 55 71 56 72 57 72 58 75 ...
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... experiment . 2. Definition of Motion . - You must in the first place get a clear idea of motion . Motion means change of place . Some of you may have heard that this solid earth on which we dwell is in truth moving very fast round the ...
... experiment . 2. Definition of Motion . - You must in the first place get a clear idea of motion . Motion means change of place . Some of you may have heard that this solid earth on which we dwell is in truth moving very fast round the ...
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... EXPERIMENT I. - To prove this , take a tin pan with some peas in the bottom of it , and hold the pan in your right hand . Now quickly raise your right hand , with the pan in it , until your right arm is brought to a stop by a fixed bar ...
... EXPERIMENT I. - To prove this , take a tin pan with some peas in the bottom of it , and hold the pan in your right hand . Now quickly raise your right hand , with the pan in it , until your right arm is brought to a stop by a fixed bar ...
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... EXPERIMENT 2. - Now put some more peas into the pan , having spilt the last ones ; but instead of raising the pan quickly upwards , lower it as quickly as you possibly can . Here , the force of your arm makes the pan move down very ...
... EXPERIMENT 2. - Now put some more peas into the pan , having spilt the last ones ; but instead of raising the pan quickly upwards , lower it as quickly as you possibly can . Here , the force of your arm makes the pan move down very ...
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acid air-pump attracted BALFOUR STEWART battery blow boiling-point bottom brass bright bulb bulk for bulk buoyancy burning-glass called cannon cold colours conductor convection copper cubic inches cylinder Describe an experiment E. A. FREEMAN earth elec electric machine electroscope excited glass excited sealing-wax expand experiment showing fact feet fill fire force gases Give an instance glass support grains gravity heated body hot body Illustrate your reply iron kinds of electricity knob latent heat lens Leyden jar liquid magnify means mercury metal mirror motion move needle nitric acid particles pass phosphorus piston pith ball plate platinum positive electricity pound weight pressure Price Primer prism ray of light rise rubbed scale-pan Sketch solid sound spark steam stoneware strikes substance sulphuric acid surface temperature thermometer thing told tricity tube valve vapour velocity vessel vibrating body weight wire zinc