The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 106
on pump 13 a lever of the first kind, the shorterarm of which is connected with the piston.* When the handle is pressed down, thepiston a.-cends. The valves, and the parts which contain them, are, in commonlanguage, called boxes. t There are two ways in which the motion of the air may be explained.… … Which of the mechanical powers i3 the handle of the pump? 260. How highcan water be raised by the common pump . Why J 261. How does the forcingpump differ from the common pump; What figure represents the forcing pump IExplain it. 262. What is wind ! In what two ways may the motion of theair be…
Physics
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