Boston Marathon icon Dick Hoyt, who pushed son, dies at 80
I remember seeing and hearing about this guy when I was younger and being amazed at the love of a father for his son. Still am.
Airplanes and conveyor belts
I remember arguing with my dad, a man who had studied aerospace engineering in college for a while. He also thought that the plane wouldn't take off. But I immediately understood the thing that Adam does a great job explaining - the relationship of the plane wheels and the ground.