Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings ...

A sneeze. Ocean currents. Smoke. What do these have in common? They're instances of turbulence: unpredictable, chaotic, ...

Hydrologic Reference Stations update 2020 Introduction Hydrologic Reference Stations (HRS) was released to the public in June 2013 with available data to December 2012. It was updated in October 2015, ...