The clatter of the helicopter's rotors is very loud.

直升机的螺旋桨转动声音巨大。

Enough energy to send a springtail spinning at 374 flips per second–almost 40 times faster than a spinning helicopter rotor.

足够的能量使跳虫以每秒 374 次翻转的速度旋转——几乎比旋转的直升机旋翼快 40 倍。

The blue sky is blotted out and the whap-whap-whap of the helicopter rotors becomes magnified and echoey, like the clapping of giant hands.

蓝天被遮住，而直升飞机螺旋桨呜呜的旋转声却加强了，还有回音，像是巨人在鼓掌。

Now, when I set out to do this experiment, I wondered if the rope would be affected by the air pushed down by the helicopters rotor, but judging by our results.

现在，当我开始做这个实验时，我想知道绳子会不会受到直升机旋翼推下的空气的影响，但从我们的结果来看。