From ketchup to quicksand, non-Newtonian fluids have long fascinated and puzzled scientists. Unlike ordinary fluids, their flow properties change depending on how much force is applied, but the ...

While atmospheric turbulence is a familiar culprit of rough flights, the chaotic movement of turbulent flows remains an unsolved problem in physics. To gain insight into the system, a team of ...

The knife easily leaves swirls in the spread. rimglow/iStock via Getty Images Plus Those Transportation Security Administration requirements are drilled into every frequent flyer’s head: You can carry ...