With high-speed wind tests of scale models under way, the blended wing could take flight before 2020.

目前，等比例模型的高速风洞测试正在进行中，预计混合机翼能在2020年前起飞。

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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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This illustrates the initial "pop" of the lower wing. the Wind dictates how hard this input is and how fast the next input occurs.

这说明了初始作用在下翼上的弹拉的效果。风力决定了动作的力度和下一个动作的时机。

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Time and again it tried to pull itself back into the shelter of the wing, but the wind was relentless.

BBC: Snake clings to Qantas plane's wing during flight

Still, if the history of Thatcherism and Reaganism teaches anything, it is that ideas which are dismissed in one decade as the preserve of right-wing eccentrics can quickly move into the mainstream when the ideological wind changes.

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