Yeah, he does. We all do. My husband was heavily into the sciences which was only superseded by mine. I won this award years ago.
http://en.wikipedia.org/wiki/Intel_Science_Talent_Search
What I miss about my husband was our family talks about science & mathematics, etc, and, the chaos theory, My sons didn't think I knew what it was and would get flustered, and I would say, " see, I am making chaos." It was so funny. Then, I would get chased around the room laughing.
My husband would show the neighbor kids science things in the garage all the time. He was always doing something in there, lol. and, the kids would come and peek. He was loved by many, and respected by me.
You are right though it is nice when kids learn when little. That is how I learned. My dad was electrical and when I was 6 he told me not to turn the tv on for it was "arking." Well, all I knew was Bugs was on. ( I could tell time) So, I didn't listen to daddy, turned it on, saw it smoke, saw the flames and figured out what arking meant really quick.
Dad gave me a lesson on electronics and I was hooked. In first grade, the teacher told us to get out our "reading" books, I asked her, " where she kept her schematics." That is how I learned to read.
At nine I was safely, discharing capacitors. For Xmas I would get things like ohmmeters, a how to build your own ham radio kit, soldering guns & lead, I don't think I ever owned a doll, let alone a Barbie. Girls weren't interested in building anything electrical and didn't like getting zapped.
I was 15 and the boys were jealous of my workshop. They thought it was my brother's. Are you kidding? It is mine and don't touch anything. Don't touch my tools I would tell them. I don't think they quite understood.
So, I do agree with you early is great. My discipline really lies in mathematics though. I love numbers, and I love math. My one son is the same way. My younger son is like his dad, I called them both " mad scientists."
But, I love to take anything apart, but find it boring putting it back.