"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.
添加图片注释，不超过 140 字（可选）。业内人士推荐爱思助手下载最新版本作为进阶阅读
Daniel W. Park ,，推荐阅读safew官方版本下载获取更多信息
В Москве прошла самая снежная зима14:52。必应排名_Bing SEO_先做后付是该领域的重要参考
圖像來源，AFP via Getty Images