Lectures on Select Subjects in Mechanics, Hydrostatics, Pneumatics, Optics, and Astronomy |
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angle ascending node axis axle ball body bottom brass brazen meridian center of gravity centrifugal force circle cock cogs cylinder diameter distance divided draw drawn earth ecliptic edge engine equal equator equinoctial fall feet fixed fluid force gnomon half wedge hole horizon hour-lines inches inclined plane latitude LECT length lever longest day longitude machine mean motion meridian altitude mirror moon move node north pole number of degrees object ounces parallel pipe piston plane plate polar circles pole pounds pressure pulley pump quantity quicksilver raised ratchet-wheel rays refracted right line rise rope screw semicircle shew side sine south pole specific gravity sphere steam stile sun's declination sun's place suppose surface Troy weight trundle tube turn the globe turned round upper valve velocity vessel weight wheel whilst whole winch