How sprinkler works?

For those who are interested to know the working mechanism of a water spraying sprinkler. You might have seen this in the gardens where these sprinklers keep rotating and water plants in its surrounding.

The last pic has the close-up shot. There is a central axis holding the apparatus (the axis is protruding in the top as a small white pyramid). Two nozzles are provided to throw out water. (The nozzles have bolts and the main nozzle can be seen with the inscription '27'). Above the nozzle is a strange spoon like structure; this lever is attached to the axis and allowed to rotate around the axis. The lever is bound by a spring.

Ok, let us check them in action. Water flows with considerable pressure from the bottom of the tube and comes out through the nozzles. The main nozzle, which is the bigger one, does the important task. While pumping out the water, water splashes on the edge of the lever. As per the design, the water force makes the lever move away in anti-clock direction. Due to the coiled spring, the lever is pushed back its original position. When the lever comes back, it hits the frame of the nozzle .. making the nozzle structure to move clock wise. This completes one particular angular motion. Again the water is sprayed on the lever, again the lever winds back and springs forward .. this continues to make the sprinkler rotate.

It is amazing to see it in action.

bug in minesweeper

Found an interesting bug. After I completed the game, the clock was still ticking. The scoreboard had gone to -1 instead of 0. Somehow the counter had gone wrong.




Do I qualify for a game tester? :-)

Eleven minutes

This book is about how an innocent girl morphs into a prostitute. The author, Paulo Coelho, explores about the world of the prostitutes, how makes them keeps going, the dreams they carry etc. Through the lead, Maria, we come to know about the customers she has. In spite of being in high post, earning good or well to do status, men have the fear of failure and fragile inside.

We had read about love and sex in many books before. Here is yet another view.

(Not sure how many google searches will be wrongly directed to this blog due to those two famous and looked out words)

Retreat

The revenge of the nomad
Chapter 3. Retreat

Ramraj slowly healed out of the trauma. Took months for him to move around. All emotional feelings had died away from him. He became analytical and view his life from different perspective. He realized someone with muscle power is going to dominate. At the same time, he can sharpen his intellect to overcome the physical forces.

With that in mind, he schemed a master plan. As a first step, he wanted to eliminate Mr Rao's right hand, Das. Das is the brain of Mr Rao. Rao consults him for all activities and executes his task thru Das.

Ramraj started to observe Das's routine. Instead of trying to bring down Das by himself, Ramraj was passing the information to Rao's arch-rival. Weak moments of Das were studied and on a chosen day, men surrounded Das to hack him down.

The arch-rival, Mr Valliesh, was happy to hear about this. As per his estimate, Mr Rao would soon fall apart from his business empire.

Mr Rao was also analyzing the events. He happen to know that Ramraj had helped Valliesh.

Ramraj expecting trouble, travelled to a far place.

End of chapter 3 out of 7.

To be continued.

Magical eraser

What if our brain memory is erasable. If we can opt for selective cleansing. For example, all my experience of being in a beach are removed. Now my visit to a beach would be very fresh and new. The first time experience in a beach would be relived. That would be awesome.

People may use it to clear off their traumatic experiences. That is a double edged sword, with advantage and disadvantage. The issue is to loose such experience and being vulnerable to go through again.