The magician's own book, or The whole art of conjuring (1862)
Arnold, George, 1834-1865, Cahill, Frank · New York, Dick & Fitzgerald · leaf 171
rse 154 THE MA«^IClA\y OWN BOOK. all the force of the current of air through the tube will boexpended on the moveable disc, and the thin ring of air,which exists round the orifice between the discs ; and sincethe moveable discs can only move with one sixty-fourth thevelocity of the blast, the ring… … THE DIYING BELL. The diving-bell is a pneumatic engine, by means of whichpersons can descend to great depths in the sea, and recoverfrom it valuable portions of wrecksand other matters. Its principle maybe well illustrated by the followingexperiment. Take a glass tumbler,and plunge it into the…
Magic tricks
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