Phd

 

>Sardar Singh was very keen on doing his Ph.D. He was in search of a

>subject on which no one did any research before! As he was thinking over it, he

>found a cockroach on the table in from of him. He decided instantly to

>do a research on the roach. He picked the roach and put it in the centre of

>the table and said: "Run". The roach ran. He pulled out one leg of the

>roach, put it again in the centre of he table and said: "Run". The roach

>ran. He pulled one more leg of the roach, put it again in the centre of the table and

>said: "Run". The roach ran. This way the roach tried to run even when it had

>just one leg. He pulled last leg of the roach, put it again in the centre of the table

>and said: Run". The roach could not! Our Professor was satisfied with his

>study and started writing his thesis: "When you pull out all the legs of a

>roach, it cannot hear anymore".