So, to those who can't find a job in the "old economy", don't worry, in a few years time you will be making wind mills or solar panels!

因此，在传统经济模式下难找工作，不必担心，在未来的几年时间内，你极可能会加入制造风能发电机或太阳能设备的行业当中。

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By putting nano-composites into the design, such wind mills can get higher performance.

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The windmill was a Medieval European innovation and both wind and water mills were not just used for grinding flour but also fuilling cloth, making leather and driving bellows and trip-hammers.

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Contrary to myth, medieval Europe was a font of innovation: water- and wind-powered mills, clocks, eyeglasses, chimneys and the wheelbarrow, as well as advances in shipbuilding, compassmaking and ironmongery (making wagon axles sturdier).

FORBES: Fact and Comment