There's something mesmerizing about watching a marble race down a wooden track, clicking and clacking its way through loops, spirals, and drops. It's a simple pleasure that never gets old, no matter ...

A new report suggests Illinois could be on the hook for plugging and cleaning up thousands of inactive and abandoned oil and ...

One type of friction can waste energy even when two perfectly smooth surfaces move against each other, but researchers are ...

The irregular, swirling motion of fluids we call turbulence can be found everywhere, from stirring in a teacup to currents in the planetary atmosphere. This phenomenon is governed by the Navier-Stokes ...