03-12-2012, 07:06 PM
Luckily, that picture is not my job. I just happened to see it the day after changing a flat and having to use a cheater bar I carry with me. I guess seeing the one leverage point between the 2 wrenches made me visualize the leverage principle better. So, I guess a long bar has an infinite number of those points, and after it's all over, it's the length that does the work.