 | Natural philosophy - 1857 - عدد الصفحات: 80
...portion of liquid is warmed, it expands, and has, in consequence, its specific gravity lessened. 238. Air and other gases are raised in temperature in the same way that liquids are. They conduct heat very slowly, as may be proved by applying heat to the top of an air-tight glass vessel with a thermometer... | |
 | William Chambers, Robert Chambers - 1860 - عدد الصفحات: 840
...in consequence, its specific gravity lessened. Air and other gases are raised in temperature in tbe same way that liquids are. They conduct heat with...circulation immediately begin, as in the case of a liquid. It is a popular belief that a large fire in the open air • A colouring-matter prepared from certain... | |
 | Robert Chambers - 1867 - عدد الصفحات: 832
...any portion of liquid is warmed, it expands, and has, in consequence, its specific gravity lessened. Air and other gases are raised in temperature in the...slowness, as may be proved by applying heat to the -$op of an air-tight glass vessel with a thermometer suspended a little below the heated portion. But... | |
 | Chambers W. and R., ltd - 1874 - عدد الصفحات: 848
...below. Air and other gases arc raised in temperature in the same way that liquids are. They Fig. 20. conduct heat with extreme slowness, as may be proved...circulation immediately begin, as in the case of a liquid. Our sensations lead us into many errors regarding the temperature of bodies, which attention to their... | |
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They conduct heat very slowly, as may be proved by applying heat to the top of an air-tight glass vessel with a thermometer suspended a little below the heated portion. But when the heat is applied from below, currents of circulation immediately begin,... 