Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 631
image of the flarne to fall upon theobject. A clear, sharp image may be produced in the man- 6o8 EXPERIMENTAL SCIENCE. ner described, but of course its size is limited by theamount of light available. With a strong light, such as isused in larger lanterns, the size of the image may be… … Annular Oxyhydrogen Burner. they issue from their respective orifices, is perfectly safe, itbeing impossible for the gases to mix in the tubes or gasholders. In this burner the central or oxygen tube has aconical end with a central orifice 0-03 inch in diameter. Thehydrogen tube is provided with an…
Physics · Lantern projection · Electric apparatus and appliances
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