Читать книгу Experimental Mechanics - Robert S. Ball - Страница 26
        LECTURE IV.
 THE FORCE OF GRAVITY.      
ОглавлениеIntroduction.—Specific Gravity.—The Plummet and Spirit-Level.—The Centre of Gravity.—Stable and Unstable Equilibrium.—Property of the Centre of Gravity in a Revolving Wheel.
