우리는 이 비디오를 들여다보면서 팔이 원래 위치로 얼마나 빨리 돌아오는지를 그리고 우리는 시도하자말자 깜짝 놀랐습니다.
And so what we did is, we took a look at these videos, and we measured how fast the limb was moving And we were in for our first surprise.