And since a typical tower contains a full day's worth of water, the force of gravity can maintain the hydrostatic pressure of the water system even when the power goes out.

普通水塔储蓄一整天的用水，由此，即便在停电的情况下，重力作用仍能保持供水系统的静水压力。

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Gravity and body mass are a 'free' source of power, which can minimize reliance on muscular force.

重力和身体的质量都是免费的能源，能减少我们对肌肉力量的依靠。

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Brian explains how its greatest power, gravity, reaches out for hundreds of billions of kilometres, where the lightest gravitational touch encircles our solar system in a mysterious cloud of comets.

布莱恩解释了它最大的权力，重力，达到数千亿公里，轻的重力碰环绕太阳系的彗星的神秘的云。

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All his movements were made against a force that could reach six times the power of gravity.

VOA: special.2010.07.07

Like wind and sunlight, the power of gravity is an infinite resource.

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In other green tech and design news, Hitachi unveiled an impressive new wireless controlled robot to help with the Fukushima Daiichi cleanup and London-based designers Martin Riddiford and Jim Reeves developed the GravityLight, an amazing low-energy, battery-free light that works by harnessing the power of weight and gravity.

ENGADGET: Inhabitat's Week in Green: madder root batteries, sun-powered plane and the world's first fiber-optic solar cell

And there is no indication that the reason why decaying dams are found at each point where the town brook falls ten feet is because there used to be a dozen factories on its banks using the gravity power of falling water to turn out a variety of industrial products.

FORBES: A Cautionary Tale From America's Hometown