What is theory of relativity

What is the Theory of Relativity?

 Table of contents

 Theory of relativity
 Inertial / Non-Inertial Frame of Reference
 General theory of relativity
 Special theory of relativity 

 The Theory of Relativity was given by Albert Einstein, one of the world's most famous physicists.

 Theory of relativity meaning
 Relative means relative.  Theory means theory.

 In this case, the Theory of Relativity means to see the movement of any object or creature relative to another object or creature.

 We can divide it into two parts.  General (General) Theory of Relativity and Special (Special) Theory of Relativity.

 Inertial / Non-Inertial Frame of Reference

 An inertial frame is one in which all the objects are moving with respect to each other at the same speed.  The speed of one object does not change relative to another.  In this frame the first law of motion (New Testament) given by Newton is valid.

 While a non-inertial frame is one that has accelerated motion.  Newton's First Law of Motion is not valid in this frame.

 General theory of relativity

 General theory is valid only in the inertial frame of reference.  To understand this, we start with an example.  Suppose a car on the road is going from east to west at a speed of 30kmph.  Rohan and his friend Raj are sitting in the car.  And you are standing on the side of the road.  Raj is stable and in one place for Rohan.  But for you both of them are going west at the speed of 30kmph.  And for them you are going east before 30kmph.  All three conclusions are true.  The difference is the frame of reference.  Now if sachin  throws a ball in the west direction at a speed of 10 kmph, then for Rohan that ball will go from 10 kmph.  But you will feel that the ball is going west at the speed of 30 + 10 (cart + ball) = 40kmph.

 We only know that the speed of light is constant - 300,000 kilometers per second.  If sachin had torched towards the west, would the speed of light increase?  no.  This is not possible.

 Nothing in the world can move faster than the speed of light.  If anything moves too fast or as fast as light, then its length and time changes to keep its relative speed constant.  This is called time dilation and length contrastion in English.

 Time dilation means slow movement of time.  Whatever object will run so fast, its time will pass slowly.  That is, if you go to another planet at the speed of light and come back, you will see your future on earth.  Length contraption means that the length of that fast moving thing gets worked up.  This theory proved that time is not relative.  He moves differently for everyone.

 Special theory of relativity 

 General theory is valid only in the inertial frame.  But nothing in the universe moves at a single speed.  Everything is accelerated.  Which means that general theory does not apply in the real world.  Special theory of relativeity was given to rectify this deficiency.

 This theory is related to gravity.  We know that there are three dimensions.  Those are addressed by x, y and z.  Einstein said that time is the fourth dimension.

 Think you fell on the ground with water.  So in a while the water will spread here and take different shapes.  We can see it like a movie which changes with time.

 Space time is treated as a stretched fabric on which the curves are due to mass.  The higher the load, the more the curve.  Gravity also seems to be due to the curve.

 It was also believed that light moves in a straight line.  But this theory proved that light can be folded.  And the heavier the object, the higher the light will turn after hitting it.  Due to the turn of light, we are able to see the stars behind the sun.

 Amazingly, it was discovered that time is also related to gravity. Where gravity is intense, time passes slowly, such as the center of the Earth.  And where gravity is low, time seems to pass quickly, like high mountains.  Due to this discovery, GPS systems have been built today.