This project will be featured in my upcoming book: Pop Sizzle Boom! 101 Experiments for Your Mad Scientist, hitting stores in June 2017! Take a good look at your hands. Bend your fingers back and forth, and pay attention to the joints in your knuckles as you move. There is a lot involved in moving your hands! Under your skin you have bones, muscles, nerves, and tendons, all working together at the same time to allow you to move and flex your fingers. But they don’t just move on impulse, by themselves. Something needs to pull them down! With this project, you’ll be able toRead More →