Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 108
mp driven bya steam engine. The Diving Bell is a solid iron bell open at the bottom,Fig. 127. The water enters underneath until itcompresses the air to an amount equal to its ownpressure. The supply of air can be increasedby the aid of a condenser and supply tube un-til the water is entirely forced… … BOOK IV. THE UNDULATORY FORCES. 340. For a discussion of the nature of the UndulatoryForces, see Book II, Chapter II, page 40. They will betreated in the following order, Acoustics, Heat, Optics, andElectricity. Past I.—Acoustics. 341. Acoustics treats of the production, propagation,laws and…
Physics
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