Below are demos, ideas, and instructions for the adventurous engineer. Often, I cannot find the information on the internet that I need to start an experiment. I made this website to help those who have similar problems. If you see anything that can be added, modified, or fixed, please email me.
The Rubik's Cube is a classic 1980's puzzle. With some patience and an online tutorial, it's not that difficult. Once you learn the basic method from an online tutorial, you can get faster by using various shortcuts.
I have been building guns since I could build anything. I don't see them as a weapons, but as challenges. Air pressure, electricity, or hairspray, I want to turn every energy source into a gun.