PhysicsAppleton, 1878 - 149 páginas |
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Página 3
... suppose that I go out of doors and walk along a straight road for two or three hours , and always at the same pace . Well , I find that in one hour I have got four miles beyond my starting point , and that in two hours I have got eight ...
... suppose that I go out of doors and walk along a straight road for two or three hours , and always at the same pace . Well , I find that in one hour I have got four miles beyond my starting point , and that in two hours I have got eight ...
Página 14
... Suppose that I put this piece of metal into one of the scale - pans , and put weights equal to 150 grains into the other , the scale - pan with the metal in it sinks down , thereby showing that the metal is heavier than the weights ...
... Suppose that I put this piece of metal into one of the scale - pans , and put weights equal to 150 grains into the other , the scale - pan with the metal in it sinks down , thereby showing that the metal is heavier than the weights ...
Página 42
... suppose we start with the piston at the bottom of the cylinder , and the valves shut , and begin to pull the piston up . In doing so we make an empty space which the air on all sides will try to fill up if it possibly can ( Art . 29 ) ...
... suppose we start with the piston at the bottom of the cylinder , and the valves shut , and begin to pull the piston up . In doing so we make an empty space which the air on all sides will try to fill up if it possibly can ( Art . 29 ) ...
Página 45
... Suppose now that you have got the barrel filled with water , and that you are pressing down the piston . As you do this the pressure you give the piston will be communicated by the water to the lower valve , which will be kept closed ...
... Suppose now that you have got the barrel filled with water , and that you are pressing down the piston . As you do this the pressure you give the piston will be communicated by the water to the lower valve , which will be kept closed ...
Página 49
... suppose that we point a cannon straight up into the air , and discharge a ball weighing 100 lbs . with velocity just enough to make it mount up 1,000 feet before it turns ; we can tell at once from this how much energy the ball had when ...
... suppose that we point a cannon straight up into the air , and discharge a ball weighing 100 lbs . with velocity just enough to make it mount up 1,000 feet before it turns ; we can tell at once from this how much energy the ball had when ...
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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