When two fluids don't mix well, they sometimes form strange patterns called "viscous fingering," or Saffman-Taylor instability. Studying these patterns can help scientists understand how to design ...

It's widely known that thick, viscous liquids - like honey - flow more slowly than low-viscosity liquids, like water. Researchers were surprised to find this behaviour flipped on its head when the ...

Conventional wisdom holds that an electric current never returns to its source nor follows a circular path. Instead, it flows from one electrode to another following a local electric field, obeying ...