그저 보트를 가지고, 뭔가 길고 무거운 것을 끌기만 하면 됩니다. 그런데, 우리가 앞뒤로 태킹(tacking)할 때마다, 우리는 두 가지를 잃습니다: 견인력과 방향입니다.
We just took a simple sailing boat and we tried to pull something long and heavy, but as we tacked back and forth, what we lost was two things: we were losing pulling power and direction.