say, it gets larger in all directions. To proveto you that this is the case let us heat a solid, aliquid, and a gas. r.ODIES.] PHYSICS. 79 * ExPEEiMENT 3G. —Lot US take (fig. 24) a longmetallic rod held tightly by a screw at one end, B.The other end is, however, free to expand, and indoing so it… … FiK. 2i. position, and rise up towards the top, Now let usplace two or three lamps beneath the rod and heat it,and we shall find that the rod expands, and pressesagainst the pointer so that it rises. If the lamps bewithdrawn, the rod will cool, and in the course ofa few minutes the pointer will…
Physics
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