So what’s the trick behind this thing in the video?
The answer is below the fold. I’m sure the physicists and everyone smarter than me will figure it out by watching.
In the base is a battery powered magnet. As the ball descends, the magnet increases the ball’s velocity, allowing it to make the jump. Without the magnet, it would fall.
In a separate video, a magnetic compass was placed on the base, below the ramp. The needle stayed fixed while the ball was on the platform. As the ball rolled past the compass and entered the magnetic field, the needle oscillated wildly.