Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 684
protectedfrom draughts of air. To seal a platinum wire in a glass tube, the glass is heatedby means of a pointed flame, at the same time the end of aplatinum wire is brought into contact with the heated part.The wire welds to the glass, and when pulled away forms inthe glass a small tubulated… … K Cutting Glass Bottles. desired, some easily melted enamel may be fused on theglass around the wire.* CUTTING GLASS BOTTLES AND TUBES. It often happens that a jar for a battery or for experi-mental uses is required when it is inconvenient to obtain itfrom the dealer. Fig. 638 shows a simple way of…
Physics · Lantern projection · Electric apparatus and appliances
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