A fundamental rule in the universe is that mass cannot be destroyed, so making something smaller doesn't mean it will be lighter in weight!

宇宙的一条基本法则就是物质不灭定理，体积缩小质量是不会改变的。

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This paper studies a cone with leaking as a pendulum and the period of its sand leaking movement and gives out the period changing rule of the variable mass pendulum.

本文以一个载满沙子的圆锥表漏斗作为单摆，研究沙子漏出过程的运动周期，从而给出此时变质量单摆的周期变化规律。

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Firstly, the basic rule of seepage in fissured rock mass and the mechanism of the effect are studied.

首先分析了裂隙岩体渗流运动的基本规律，研究了应力对渗流作用影响的机理。

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Mahatma Gandhi (1869-1948) was a saint-genius who turned opposition to British rule into a mass movement and demonstrated, through non-violent protest, that virtue has its own inescapable power.

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It is no coincidence that only after that rule was established did any critical mass of minority interviews and head coach hiring occur.

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Ms Megawati is Indonesia's third president since a mass uprising forced President Suharto from office in 1998, following 32 years of authoritarian rule.

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