PhysicsAppleton, 1878 - 149 páginas |
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Página 74
... hot water , and then plunge them both into water of ordinary heat , this ... bodies , if we could cool them enough - that is to say , take away enough of ... body very difficult to melt is called refractory . In the following table we ...
... hot water , and then plunge them both into water of ordinary heat , this ... bodies , if we could cool them enough - that is to say , take away enough of ... body very difficult to melt is called refractory . In the following table we ...
Página 81
... hot mass as soft as treacle , and if heated still more will be driven off in the shape of gas . Heat affects bodies in many other ways , and more especially it promotes the operation of chemical attrac- tion . Thus at a low temperature ...
... hot mass as soft as treacle , and if heated still more will be driven off in the shape of gas . Heat affects bodies in many other ways , and more especially it promotes the operation of chemical attrac- tion . Thus at a low temperature ...
Página 83
... hot body will not always remain hot , but it will part with its heat to the colder bodies that are around it ; and it will always insist upon doing this , but it will do it in different ways according to circumstances . EXPERIMENT 46 ...
... hot body will not always remain hot , but it will part with its heat to the colder bodies that are around it ; and it will always insist upon doing this , but it will do it in different ways according to circumstances . EXPERIMENT 46 ...
Página 85
Balfour Stewart. We have thus three very different ways in which a heated body ... hot to hold . But if , instead of a metal poker or rod , a glass or ... bodies in order to keep the heat in , or it may be used to wrap round a block of ice ...
Balfour Stewart. We have thus three very different ways in which a heated body ... hot to hold . But if , instead of a metal poker or rod , a glass or ... bodies in order to keep the heat in , or it may be used to wrap round a block of ice ...
Página 88
... body of water becomes cooled down to a temperature about 4 ° above the ... hot air of a fire goes up the chimney , being replaced by cold air from the ... hot air to the poles in the upper regions of the air , and we have also currents ...
... body of water becomes cooled down to a temperature about 4 ° above the ... hot air of a fire goes up the chimney , being replaced by cold air from the ... hot air to the poles in the upper regions of the air , and we have also currents ...
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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