A couple weekends ago, it was time to change the toilet seat. Exciting, right?
Upon attempting to remove the nut from the bottom of the seat, I found it was extremely tight - I couldn't even budge it with just my fingers. I had to go to my handy-dandy tool box and get my pliers, which ended up working just fine.
In tonight's anatomy class, we studied the reason why the pliers worked when just my fingers didn't: it all had to do with the lever system. We studied the differences between the 1st, 2nd, and 3rd class levers and how they relate to every day life and also to the body, specifically muscles and bones. We even did a little math, learning the formula for figuring out force needed to be effective in each lever class.
I actually enjoyed it, once I started understanding what we were talking about. I sometimes wonder if I'm mechanically inclined. But then I think about all the grease on the car and how dirty I would get and decide that, no, I'm not mechanically inclined.