The amplification of waves reflected from a rotating obstacle, or superradiance, has been predicted in hydrodynamics and black-hole physics. An experiment with rotating vortex flows confirms this phenomenon.

中文翻译：

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涡流中的旋转超辐射散射

在流体动力学和黑洞物理学中，已经预测到从旋转障碍物或超辐射反射的波会放大。旋转涡流的实验证实了这一现象。