PhysicsAppleton, 1878 - 149 páginas |
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Página 2
... substance is there , but the state of it is very different ; if you now attempt to touch it , you will be sure to burn your fingers . Or again : if , instead of putting it into the fire , we put it into a cannon and discharge the cannon ...
... substance is there , but the state of it is very different ; if you now attempt to touch it , you will be sure to burn your fingers . Or again : if , instead of putting it into the fire , we put it into a cannon and discharge the cannon ...
Página 9
... substance to pieces , or bend it , or powder it , or alter its shape or size in any way . Now that force which binds together the various particles of a body is called cohesion . You see now the difference between gravity and cohesion ...
... substance to pieces , or bend it , or powder it , or alter its shape or size in any way . Now that force which binds together the various particles of a body is called cohesion . You see now the difference between gravity and cohesion ...
Página 11
... substances would unite together to form a compound substance , but we should have nothing but about sixty simple substances consisting of a great number of metals and a small number of gases . There would be no variety in such a world ...
... substances would unite together to form a compound substance , but we should have nothing but about sixty simple substances consisting of a great number of metals and a small number of gases . There would be no variety in such a world ...
Página 13
... substance has a point G of this kind , which we call its centre of gravity . The balance which you see on page 28 has , like every- thing else , its point G - its centre of gravity . And it will endeavour , just like the sheet of iron ...
... substance has a point G of this kind , which we call its centre of gravity . The balance which you see on page 28 has , like every- thing else , its point G - its centre of gravity . And it will endeavour , just like the sheet of iron ...
Página 14
... substance , and place this substance in the one scale - pan , and the weights in the other , and if the pointer points exactly in the middle , I am then quite sure that the weights in the one scale - pan are exactly equal to the weight ...
... substance , and place this substance in the one scale - pan , and the weights in the other , and if the pointer points exactly in the middle , I am then quite sure that the weights in the one scale - pan are exactly equal to the weight ...
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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