User:Tamralipta/Sandbox

'GRAVITATION


 * MODERN WORK ON GRAVITATIONAL THEORY BEGAN WITH THE WORK OF GALILEO GALILEE. WITH CAREFUL MEASUREMENT OF OBJECTS ROLLING DOWN INCLINES,GALILEO SHOWED THAT GRAVITATION ACCELERATES ALL OBJECT AT THE SAME RATE.


 * THIS WAS A MAJOR DEVIATION FROM ARISTOTLE'S BELIEF THAT HEAVIER OBJECT ACCELERATES FASTER.


 * AFTER A FEW YEARS,ISSAC NEWTON PUBLISHED PRINCIPIA, WHICH HYPOTHESIZES THE INVERSE-SQUARE LAW OF UNIVERSAL GRAVITATION.NEWTON BELIEVED IN THE CONCEPT OF ABSOLUTE TIME FOR ALL OBSERVERS IN THE UNIVERSE WHICH WAS PROVEN WRONG BY EINSTEIN.


 * THEN CAME,PERHAPS THE MOST CELEBRATE PHYSICIST OF ALL TIME,ALBERT EINSTEIN.GRAVITATION AS A FIELD KEPT ITS RECORD STRAIGHT ENSURING THE TITLE OF "A GREAT PHYSICIST" TO ALL,INCLUDING GALILEO,NEWTON AND NOW EINSTEIN.


 * IN GENERAL RELATIVITY,THE EFFECTS OF GRAVITATION ARE ASCRIBED TO SPACE TIME CURVATURE INSTEAD OF A FORCE.EINSTEIN PROPOSED THAT SPACE TIME IS CURVED BY MATTER AND EQUIVALENTLY BY ENERGY FROM ENERGY-MASS RELATION.


 * SO FAR SO GOOD,WE HAD ALMOST UNDERSTOOD THE WAY GOD WORKS AND HAD DISCOVERED BEAUTIFUL EQUATIONS EXPLAINING THE SAME.BUT THE FUN WAS FAR FROM OVER.


 * WITH QUANTUM MECHANICS COMING INTO PICTURE OUR THEORIES FOR SYSTEMS WHICH ARE VERY DENSE AND VERY SMALL BROKE GENERAL RELATIVITY APART.A NEW APPROACH FOR THIS UNIQUE COMBO WAS NEEDED.THIS HAS BEEN GIVEN BY STRING THEORY."WHAT IS IT?" YOU MAY ASK,I HAVE NO CLUE,BUT IT IS SOME REALLY SERIOUS STUFF AND MAY BE ONE DAY WE WILL UNDERSTAND IT.