Vibrating in the wind, the bristles create some drag. But they also reduce the wing's slipstream, an area of low-pressure turbulence that pulls back on the wing, and hence reduce drag.

风中振动时，刷毛会产生反作用力，但同时它也可以减少机翼滑流，产生一个低气压乱流，机翼上形成回力，因而减小阻力。

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The combination of low pressure on one side and high pressure on the other creates a drag force that must be overcome — a significant waste of energy.

为此，必须浪费大量能源以克服压力差产生的拉力。

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The low-pressure area reduces wind resistance and hence the amount of drag, which means less energy is needed to maintain the same speed as the leader.

在低压力区，空气阻力减少，向后拉的力量减小，因此只需要消耗较少的能量就可维持与在前面的竞争对手相同的速度。

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Peter Moore, president of EA Sports, part of Electronic Arts, a games company, says that some gamers like to recreate what they see during live NASCAR races in video games, using online information about speed, drag, tyre pressure and so forth to recreate, in a virtual world, the real-life action.

ECONOMIST: Sport and the media are natural bedfellows

If the case proceeds in Delaware state court, Transocean might feel pressure to drag in Halliburton and Schlumberger, Brewer said, to try and share liability in a process known as inpleading.

FORBES: St. Joe Oil-Spill Lawsuit Vs. Transocean Ordered Back To State Court

If fiscal cliff talks drag on, it could support gold and pressure stocks.

FORBES: METALS OUTLOOK: Prices May Rise As Fiscal Cliff Talks Drag On, But Upside Limited