PhysicsAppleton, 1878 - 149 páginas |
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Página 15
... plate of glass above them , and you may by this means squeeze them flat ; but if you take away the glass , the mercury will resume its previous glo- bular shape . EXPERIMENT 6. - Sprinkle a few drops of water on an oily or greasy ...
... plate of glass above them , and you may by this means squeeze them flat ; but if you take away the glass , the mercury will resume its previous glo- bular shape . EXPERIMENT 6. - Sprinkle a few drops of water on an oily or greasy ...
Página 35
... plate of the air - pump a jar which is covered at its top by a piece of india - rubber tied tightly round the rim . I now exhaust the jar as before , and find that as I withdraw the air from the inside of the jar , the outside air ...
... plate of the air - pump a jar which is covered at its top by a piece of india - rubber tied tightly round the rim . I now exhaust the jar as before , and find that as I withdraw the air from the inside of the jar , the outside air ...
Página 41
... plate . You see too coming out from the middle of the plate a tube which opens into the bell - jar on the left side , and into the cylinder or barrel on the right , and thus connects the two together . You see also a piston or plug that ...
... plate . You see too coming out from the middle of the plate a tube which opens into the bell - jar on the left side , and into the cylinder or barrel on the right , and thus connects the two together . You see also a piston or plug that ...
Página 115
... plate of glass revolving , as in fig . 42. As the plate of glass Fig . 42 . revolves , it is rubbed against by two sets of rubbers , one above and the other below . These rubbers are usually made of leather stuffed with horse - hair ...
... plate of glass revolving , as in fig . 42. As the plate of glass Fig . 42 . revolves , it is rubbed against by two sets of rubbers , one above and the other below . These rubbers are usually made of leather stuffed with horse - hair ...
Página 116
... plate is turned round , positive electricity is produced in the glass , while negative electricity is produced in the rubbers . The negative electricity of the rubbers then passes along the me- tallic chain which is connected with the ...
... plate is turned round , positive electricity is produced in the glass , while negative electricity is produced in the rubbers . The negative electricity of the rubbers then passes along the me- tallic chain which is connected with the ...
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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