For decades scientists have been trying to solve Feynman's Sprinkler Problem: How does a sprinkler running in reverse—in which the water flows into the device rather than out of it—work? Through a ...

Seismic kitchen roll: photograph showing paper towel being stretched between an anchor (bottom) and springs (top). (Courtesy: Tzortzopoulos et al. / Geophysical Research Letters) A seismic model based ...

image: Hit it hard and it will fracture like a solid, but tilt it slowly and it will flow like a fluid. This is the intriguing property of a type of "complex fluid" which has revealed "new physics" in ...

Scientists investigate the strange behavior of viscoelastic fluids in a series of specially designed experiments. Viscoelastic fluids are everywhere, whether racing through your veins or through 1,300 ...

For decades scientists have been trying to solve Feynman's Sprinkler Problem: How does a sprinkler running in reverse work? Through a series of experiments, a team of mathematicians has figured out ...

The image illustrates the experimental set-up: (a) Cut-away schematic of the floating sprinkler, (b) Flow control apparatus operating in suction mode, and (c) Flow imaging with a laser sheet ...