Physics deals with analyzing all of nature to help us better understand the universe that we live in. Besides being one of the oldest quests of man, knowing and understanding how things work is a basic need of the world as it is today. Physicists everywhere have always tried to answer the questions of how and when our universe started off and what really makes it tick. Great theorists, experimentalists and thinkers have molded the shape of our world as it exists today with the help of their theories and experiments. Although most people wouldn’t think of it but a lot of the technology that comes alive is given birth to by theorists who make the breakthroughs through observation and calculation. Let us now look at top 10 physicists of all time and look at what their contributions are in shaping the macro and the micro world in which we so casually live in.