"Birds can actually morph their wings," says Upmanyu. "They have perfected this highly efficient way to fly." Aircraft and wind turbines might one day do something similar. Upmanyu suggests that the wing could automatically and dynamically respond to air pressure, using a valve-based system to adjust its shape.
圖像來源，Roos Koole via Getty Images。关于这个话题，clash下载提供了深入分析
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