Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
of the cylinder. In the cover are two open-ings to admit the egress and ingress of the air. Operation.—If heat be applied to the bulb, and steam generated,the piston will be driven npioard by the steam with a force equal to itselasticity, as indicated by the arrows at W. If now the cylinder… … HEAT. 18^ to 15 lbs. to the square inch, indicated by the arrows passing throughthe cover. This operation can be repeated at pleasure. This apparatus, simple as it is, affords a practical illustration of theexpansion and condensation of steam, and the atmospheric pressure,which constitute the…
Physics · Astronomy
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