A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 409
device for admitting steam to either end of the 386 PHYSICS. cylinder at will during almost any instant of the stroke.It therefore enables the engineer to reverse his engine,sending it forward or backward, as he pleases. 311. History of the Steam-engine.—Certain devices fordoing work on a small… … FIG. 211. apparent miracle. The two vessels, one containing water,the other wine, were concealed from the populace. A fire,represented by the lamp, was built upon the altar of somegod. Steam, generated in the unseen boiler, pressed uponthe surface of the wine in the second vessel and forced…
Physics
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