Upon the application of heat to the fire-box coil the water naturally expands and forces its way up into the expansion chamber; but there it encounters the pressure of the confined air, and ebullition is consequently FiG. [Please select]
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The superior extremity is thick, and expands in forming three tuberosities: two lateral and an anterior. [Please select]
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Water, which expands when freezing, is the only exception to this rule. [Please select]
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But when heated the air expands, and when it expands it becomes lighter. [Please select]
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The warmed water expands, becomes thereby lighter, and therefore continues to float upon the top. [Please select]
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Heat expands all substances, except ice, and in expanding develops an enormous force. [Please select]
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The vapour-charged air, being heated by the warm earth, expands, becomes lighter, and rises. [Please select]
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If absolutely dry wood is heated in absolutely dry air the wood expands. [Please select]
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] Boilers are tested by filling the boilers quite full and (1) by heating the water, which expands slightly, but with great pressure; (2) by forcing in additional water with a powerful pump. [Please select]
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When the shaft revolves, the balls fly outwards by centrifugal force, and as their velocity increases the quadrilateral figure contained by the four links expands laterally and shortens vertically. [Please select]
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