I might add I grew up with 2 engineers in my family, lived with one, my grandfather who taught me quite a bit. It was his machine shop I used as a child and learned most of what I know about mechanics and how machinery works. I still use a lathe similar to his where I have to change the gearing by removing one gear and replacing it with another to get a desired result.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!