Add Yahoo as a preferred source to see more of our stories on Google. While everything in the universe must obey the the laws of thermodynamics—except for whatever’s going on in black holes ...

Which marble run is best? Marble runs are rolling ball sculptures you build yourself. You assemble tracks in all kinds of wild configurations and watch as the marbles roll down hills, around corners ...

There are few things that can keep a certain kind of mechanically-inclined mind entranced as well as a marble run, and few structures that look as interestingly organic as procedurally-generated ...

While everything in the universe must obey the the laws of thermodynamics—except for whatever’s going on in black holes maybe?—sometimes something comes along that seems to defy them. Case in point: a ...