I've been wanting to go here since I was a kid. I ...

I've been wanting to go here since I was a kid. I had the Explorabook, which basically instilled in me the desire to learn more about science and engineering. I got to bring my son, although due to our schedule we arrived around 4 PM, just an hour before the museum closed. That hour, however, was a blast. Even though he was only two, he loved playing with magnets, ramps, spinning chains, mirrors, soap bubbles, and more. The Strandbeest exhibit was also fascinating; I could have spent an hour here alone. The best part was that guests are allowed to push one of the Strandbeests and feel the joints twist and the whole beast shift back and forth to walk forward. Pretty remarkable. I would want to come here often, if I lived in the SF area.