PhysicsAppleton, 1878 - 149 páginas |
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Página 41
... valve is just a tightly fitting trap - door that closes a hole , and that can only open in one way - upwards , for ... valves or small and tightly OF GASES . ] 41 PHYSICS .
... valve is just a tightly fitting trap - door that closes a hole , and that can only open in one way - upwards , for ... valves or small and tightly OF GASES . ] 41 PHYSICS .
Página 42
... valve and keep it tightly shut , since the valve does not open downwards . The air from the bell - jar will succeed better , for it will rush through the tube and press open the lower valve which opens upwards , and then get into the ...
... valve and keep it tightly shut , since the valve does not open downwards . The air from the bell - jar will succeed better , for it will rush through the tube and press open the lower valve which opens upwards , and then get into the ...
Página 43
... valve and fill the empty space which we make when raising the piston . And when the piston descends once more , the lower valve is kept shut , while the air within pushes open the upper valve and gets out , and thus in every double ...
... valve and fill the empty space which we make when raising the piston . And when the piston descends once more , the lower valve is kept shut , while the air within pushes open the upper valve and gets out , and thus in every double ...
Página 44
... valve also opening upwards . In fact , the barrel of the ifting pump is quite similar to that of the air - pump ... valve and keep it shut . The air in the tube will on the other hand rush up through the lower valve in order to fill up ...
... valve also opening upwards . In fact , the barrel of the ifting pump is quite similar to that of the air - pump ... valve and keep it shut . The air in the tube will on the other hand rush up through the lower valve in order to fill up ...
Página 45
... valve which opens upwards , and the water will get above the piston . Next time when you pull up the piston , you ... valve shuts and the under one opens , while , as the piston descends , the under valve shuts and the upper valve opens ...
... valve which opens upwards , and the water will get above the piston . Next time when you pull up the piston , you ... valve shuts and the under one opens , while , as the piston descends , the under valve shuts and the upper valve opens ...
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Términos y frases comunes
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