This is a sprinkler connected to a pump. When the pump is pressed (the rubber sphere in the end), the sprinker rotates. As expected.
What happens when the pump is released? What is this problem called as?
BTW, this is one of the most debated topics among internet noobs and all.
Cracked by: Dibyo, Sumanth Patlolla, s m muneer ali, Manish Achuth and Rogi
Show Answer
Feynman’s reverse sprinkler. The sprinkler will not rotate in the opposite direction, but if you place it in an idea fluid and replace all the ball bearings in the sprinkler with ideal bearings, it will rotate in the opposite direction. I think :)







