I was born in 1949. I have been familiar with Newton’s laws in 1961. Since 1962 I doubted on Newton's laws. I did not accept the infinitive speed and I found un-vivid the laws of gravity and time. I had another doubt of Infinitive Mass-Energy. I wanted to know why light has stable speed? In generally, I propounded CPH Theory in 1987. CPH Theory is based on Generalized light velocity from energy into mass. for more see: http://cph-theory.persiangig.com/