Comparison of a regular sprinkler (1) and a reverse sprinkler (2)
A Feynman sprinkler, also referred to as a Feynman inverse sprinkler or reverse sprinkler, is a sprinkler-like device which is submerged in a tank and made to suck in the surrounding fluid. The question of how such a device would turn was the subject of an intense and remarkably long-lived debate. The device generally remains steady with no rotation, though with sufficiently low friction and high rate of inflow, it has been seen to turn weakly in the opposite direction of a conventional sprinkler.
A regular sprinkler has nozzles arranged at angles on a freely rotating wheel such that when water is pumped out of them, the resulting jets cause the wheel to rotate; both a Catherine wheel and the aeolipile ("Hero's engine") work on the same principle. A "reverse" or "inverse" sprinkler would operate by aspirating the surrounding fluid instead. The problem is now commonly associated with theoretical physicist Richard Feynman, who mentions it in his bestselling memoirs Surely You're Joking, Mr. Feynman! The problem did not originate with Feynman, nor did he publish a solution to it.
A Feynmansprinkler, also referred to as a Feynman inverse sprinkler or reverse sprinkler, is a sprinkler-like device which is submerged in a tank and...
device for fire suppression Sprinkler (dance), a dance move All pages with titles containing SprinklerFeynmansprinkler, an experimental device and problem...
Richard Phillips Feynman (/ˈfaɪnmən/; May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral...
integrals (for interactions of a certain type, these are coordinate space or Feynman path integrals), than the Hamiltonian. Possible downsides of the approach...
An irrigation sprinkler (also known as a water sprinkler or simply a sprinkler) is a device used to irrigate (water) agricultural crops, lawns, landscapes...
His mother was the astrophysicist Joan Feynman and his uncle was Nobel Prize-winning physicist Richard Feynman. Hirshberg is the author of several books:...
Challenger Disaster) is a 2013 TV movie starring William Hurt about Richard Feynman's investigation into the 1986 Space Shuttle Challenger disaster. The film...
axiomatically, from the symmetries of the global evolution. In 1982, Richard Feynman suggested an initial approach to quantizing a model of cellular automata...
but it was originally proposed by Richard Feynman. The thought experiment was first described by Feynman in 1957 at a conference at Chapel Hill, North...
operation of the pop pop boat is similar to that of the Feynmansprinkler, a submerged sprinkler which is seen to turn weakly or not at all as water is...
fluid density caused by changing atmospheric pressure. Feynmansprinkler: Which way does a sprinkler rotate when submerged in a tank and made to suck in...
(forms of this have been performed) Everett phone (quantum mechanics) Feynmansprinkler (classical mechanics) Galileo's Leaning Tower of Pisa experiment (rebuttal...
The tragedies that led to the mandatory installation of fire hydrants, sprinklers and evacuation drills. 497 15 "Escape! Because Accidents Happen: Car Crash"...
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