Extensive studies have been done on cell division in the human body and these show that cells can divide for a certain fixed number of times during the lifetime of a human being. Based on these studies scientists have concluded that most of the cells in the body will have finished using about 50% of their quota of cell-divisions by the time a person reaches the age of 20. Furthermore, by the time a... 

It does not damage the environment plus its a powerful source of alternative energy. It is gaining popularity because other sources of fuel damage the environment and also fuel prices are now very high. When thinking of wind power you may think about windmills, but wind can also be turned into electricity. There are several countries in Europe using this power. Wind power is transformed into electricity...