Wright, Mark R., 1854- · London : Longmans · leaf 13
ea of thesection of the flask increases, andthe -flask is unable to pass throughthe hole. A historical experiment isGravesandes Ring (fig. 3). Aball, a, passes the hole, m, whencold, but not when heated. Movethe ball into different positions ;, in no position will it pass ; the experiment, then,… … Fig. Heat and Temperature—Thermometers 5 been jjoiled (to expel the air) and coloured with red ink. Apaper scale is fastened behind the tube. Place the flask in adish of warm water; notice first a slight descent, then asteady rise of the liquid in the Tube. The slight descentis due to the glass…
Physics
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