CYMATICS: Science Vs. Music - Nigel Stanford. Under water explosions and fluid dynamics. Veritasium. Impressive marble machine, watch till end. Man lifts a 40-pound wheel with one hand and no effort because it’s spinning. Pendulum Waves. Giant Vortex Cannon. Theo Jansen creates new creatures. Watch this bead chain loop defy gravity and bend physics | Science! Science is unendingly cool because it can consistently confound the expectations of researcher and layman alike. Case in point, what do you figure would happen if you had a bead chain coiled up in a small container, then pulled one end out? You probably didn’t guess that it would leap up and uncoil like a tiny metallic snake, but that’s what happens. This demonstration is sometimes called Newton’s Beads. It’s an unexpected trick of physics, but the mechanics behind it are fairly simple.
When the end of the chain is dropped from the container, it exerts upward force on the next section of the chain. The effect seen above in slow motion is a function of momentum. It’s not a smooth arch like you might expect, even after coming to terms with the fact that it’s happening. Students use giant balls to build omnidirectional motorcycle. Riding this bike takes balls. Gigantic balls. Quite possibly the largest pair of balls you've ever seen in one place. Round wheels are out and spherical wheels are in with this project from students at San Jose State University, the end result of which will be a rideable electric motorcycle that uses balls instead of wheels. If this concept looks familiar, that's because you've seen it before. In the movies: It's a little hard to see in the pic, but this Audi RSQ from I, Robot uses spherical wheels instead of round wheels. Outside of the movies, you may have also seen something like this as the drive system for a self-balancing, omnidirectional robot called Rezero: Essentially, this project is taking two of those ballbots, sticking them together, and adding some handlebars and a seat in the middle.
Currently, the SJSU students have finished the bike's frame and have gotten themselves a pair of huge rubber-coated carbon fiber and fiberglass balls. Spherical Drive System Bike, via OhGizmo. Amazing Water & Sound Experiment #2. Everyone Was Completely Speechless. She’s The Only Woman In The World To Do This!