Jacobson explains that as the hurricane approaches, the spinning blades remove energy from the storm’s edge and slow down the wind behind it.

雅各布森解释说， 随着飓风的临近， 旋转的叶片会从风暴边缘带走能量， 并减缓风暴背后的风速。

German physicist Albert Betz calculated that since some wind must remain to keep the blades spinning, a turbine can only ever capture 59.3% of the wind's energy.

德国物理学家 Albert Betz 计算出，由于必须保留一些风来保持叶片旋转，因此涡轮机只能捕获 59.3% 的风能。