Sterling Allan writes: "Scott F. Hall, an associate professor of art at the University of Central Florida, was tinkering around with stuff in his kitchen and came up with a continuously rotating mechanism that appears to harness electrostatic energy from the atmosphere — or something. The gizmo spins at around 80 revolutions per minute, and is constructed from a can of dog food, tooth picks, refrigerator magnets, a pencil, spring clips, and a small corner cut out of a box. Three toothpics are formed into an inverted tripod and spin atop the fourth toothpick held vertical by a spring clip that has magnets situated around the base. A graphite pencil is held over the the point of the inverted tripod via another spring clip sitting atop the can of dog food. Hall (suitable last name) posted a video at YouTube showing the gizmo running. The next day, he posted another video showing a round paperweight spinning (though not continuously) via magnets placed on its perimeter, with magnets on two adjoining dog food cans."