An outstanding count of a century ago, the theory of relativity formulated by Albert Einstein and his thought experiments, started to change everything from then on. It was November of the year 1915, when Germany had started a world war, and he had to be left alone by his wife and sons who decamped to Switzerland. His close friend and doctor for 25 years, Janos Plesch, said that he sleeps until he is awakened; he stays awake until he is told to go to bed; he will go hungry until he is given something to eat; and then he eats until he is stopped.

Being one of the most famous scientific theories of the 20^th century, Einstein's has always had profound implications. "One can express it as a joke," Einstein once told Karl Schwarzschild, the German astrophysicist who solved his equation to describe the gravitational around a solitary star (hence Schwarzschild radius). He also added that if all things were to disappear from the world, then according to Newton Galilean but to his conception, nothing would be left. 

2015 indeed marks a very historical turning point for the world and not just for Science. Although it is still mind-boggling for most people, the theory of relativity remains relevant up to this day. It has been a form of basis as to why scientists have come up with other theories and keep on progressing as time passes by.

Albert Einstein was a German-born theoretical physicist who developed the general theory of relativity, which is one of the two pillars of modern physics. The theory explains that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels. In a more simplified explanation, Einstein showed how light was at the center of the structure of space and time.