Implanted sensors show that a hummingbird 's wing flaps so fast that the brain is generating the muscle signal for the downbeat of its wing while the wing is still going up.
植入的感应片显示蜂鸟振翅如此之快以至于翅膀还在上升时其大脑就能产生翅膀下拍的肌肉信号。
2
The invention relates to a nasal stimulator which is used to dilate and stimulate the elevator muscle of the nose wing.