Here it goes, in no particular order:
rocket, rocket engine, rocket guidance, electronics, electronics billard (flipper), astronomy, physics, astrophysics, geology, reproducing machine or industrial processus at home (you should see my lab
), history of the universe, history of the solar system, history of the earth, how life appeared, history of the human, evolution, chemestry, mechanics, computers, assembly programming, biology, go-karts, recording tape, stereo, tv, nuclear bomb, explosives, sulfuric acid, nitric acid, drugs (i had a hard time quiting some of them but i'm clean now), road maps, dictionnary, language history, artificial intelligence, robot, Office things (marker, paper clips, ruler....), Asperger, Figuring what the world would look like thousands of years after the human race suddenly disapeared, ID4, aura, life after death, lights, wires, planes, algebra, law of gravity, producing digital sounds using mathematical formula (sum of sinus, harmonics generation, making a sound card), stargate, time machine, the making of, how it is made, how does it work, behind the scene stuff (lighting, sound, timing...), writing musical score from ear (transcription), inventing a new propulsion system and going to Mars in my own garage built flying saucer, TCP/IP, stock market (ouch, that was expensive!), Cosmos 1999, Coyote and road runner (my nickname), tools (beeing at home depot for hours), telecommunication, cognitive processus, ingredient list (while i'm eating), speakers, electro-magnet,
and a lot more.....