Perpetual motion—it's fun to say that. For some people, perpetual motion machines hold the secret to everlasting free energy that will save the world. To them, it's a machine that is just beyond our ...

The RGS 10000 slide, for linear-motion applications, handles dynamic axial loads to 100 lb and speeds of more than 60 fps. The self-contained unit is both backlash and maintenance-free. The slide is ...

When an intense laser pulse hits a stationary electron, it performs a trembling motion at the frequency of the light field.

The local fair just ended. Of course there is a bunch of physics at these things. Let me share just one for now. More will likely come later. Here is the big potato sack slide. Here is a quick video ...