science

Elinstein theory of time is one of the most important scientific fact of the 20 century. Scientist only know that time is relative to space , speed and mass in the early 20 century when this scientist of great talent and versatility of time. He proposed that time and space are related; time change with change in space in the universe. For example, the time in other planets in and out of our solar system is not the same as that of the earth. A day in some planets can be thousands of years on earth depending on the frame of reference.