My DS6 is crazy about Dr. Micchio Kaku, too. I didn't even know who he was until I found an email DS had drafted to the physicist, asking him about lightsabers! He takes fun super powers from the popular shows and talks through the physics of how they could (or couldn't) really work. I think I caught him doing one on lightsabers and one on invisibility cloaks, which are both very popular in our house!

HS Mom to DYS6 and DS2