Class-book of Elementary Mechanics: An Introduction to Natural PhilosophyG. Philip & Son, 1882 |
المحتوى
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طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
action air pump amount applied arrangement ascertain balance ball bottle called centre of gravity chemical affinity cohesion compressed consider containing cord cubic cubic foot cylinder direction distance earth effect elasticity engine equal equilibrium example EXERCISES exerted expand experiment Explain fall feet per second force acting force of gravity form of energy friction fulcrum gases glass greater heat inclined plane inertia kinetic energy law of motion length less LESSON lever liquid machine magnet magnitude mass matter means measure mechanical advantage mercury miles molecules move overcome parallelogram of forces passes pendulum piston portion position potential energy pound weight pressure produced properties pulley quantity raise resistance rest rises round screw side solid body specific gravity spring square inch steam stone straight line substances surface temperature transmitted tube tumbler vapour velocity vessel weight wheel and axle wood
مقاطع مشهورة
الصفحة 9 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
الصفحة 36 - that every particle of matter in the universe attracts every other particle, with a force whose direction is that of the line joining the two, and whose magnitude is directly as the product of their masses, and inversely as the square of their distances from each other.
الصفحة 71 - Being engaged lately in superintending the boring of cannon in the workshops of the military arsenal at Munich, I was struck with the very considerable degree of Heat which a brass gun acquires in a short time in being bored, and with the still more intense Heat (much greater than that of boiling water, as I found by experiment) of the metallic chips separated from it by the borer.