Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 445
POWER FROM BUBBLES Bubbles, perhaps the most ordinary and commonobjects of which we know, are usually consideredabout as useless as they are common. No doubt … A Air-pipes. B Air-chamber from which the tubes A lead. C Air-supply pipes supplying air to chamber B when it is below surface ofwater. D Shaft leading to lower air-chamber (E in Fig. 2). E Bellto lift intake ring (B) out of water. E Pipe to admit air to bell. the only use you have ever known for…
Children's literature
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