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 ...

See how an automatic sprinkler system douses a fire in seconds Dan Olson, business manager for Sprinkler Fitters Local 183 in Milwaukee, demonstrates how sprinkler systems work to suppress fires in ...

This photograph shows fluorescein dye being ejected from the sprinkler as it spins in forward mode. Credit: NYU's Applied Mathematics Laboratory This photograph shows fluorescein dye being ejected ...

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 ...