ahlam1399
08-30-2016, 01:12 PM
Surfers once deemed man-made waves weak and mushy compared to the best that break along the coast. Then engineers and an 11-time world champion surfer showed just how good an artificial wave can be.
أكثر... (http://www.npr.org/2016/08/30/490545030/surfers-and-scientists-team-up-to-create-the-perfect-wave?utm_medium=RSS&utm_campaign=news)
أكثر... (http://www.npr.org/2016/08/30/490545030/surfers-and-scientists-team-up-to-create-the-perfect-wave?utm_medium=RSS&utm_campaign=news)