Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 678
Chladnis Figures. There are three methods of projecting these figures. Ac-cording to one method, the glass plate upon which the said Fig. 630. … Formation of Sand Figures. figures are formed is clamped in such a position as to allowone corner to project into the field of the lantern. Fine sand 656 EXPERIMENTAL SCIENCE. is sprinkled evenly over the plate and a violin bow is drawnover its edge. Damping the plate bv the application of…
Physics · Lantern projection · Electric apparatus and appliances
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