When I returned to college after my career ending injury in Alaska my materials science advisor asked me to work with her on a FDA approval project for Phillips Plastics Metagen medical devices division. They were developing a new artificial hip using a memory metal band around the femur that could be stretched, the artificial hip ball removed, a new one put in its place, and the band re-secured when the ball had worn out. We didn’t have to do a ground zero study, but only had to prove that the new metal, nitinol, a nickel titanium alloy, wasn’t more corrosive in Hank’s solution than the metals that had already been approved by the FDA so it only ran for 7 months rather than 6 years. The socket was using an ultra high molecular weight polyethylene that could also be readily replaced when it wore out. It amazed me the stresses that our body’s bones and joints encounter and the engineering that’s necessary to replace them with metals. The forces exerted on bones and joints when we run, jump or even just stand aren’t easy to design for but the One who made us is a Master Engineer and took it all in stride. I maybe could break 100 bowling without them setting up the gutter bumpers like my kids used to use. Two 300 games is amazing, in one year it’s beyond my comprehension. When I was in grade school my mom was still teaching girls physical education. She was the Girl’s Athletic Association advisor and their group bowled after school so I got to bowl because mom had no one to watch me when I got out of school. I could roll around a 160 back then but we moved that summer and after that I’ve only bowled a few times with my children. My son has several balls and him and his wife both bowl in a few leagues but I seem to have lost my enthusiasm for the sport. It’s probably seeing guys like you getting all those strikes that demoralized me and made me give it up. Or at least that’s the excuse I’m going with!