Theory Of Relativity

Theory Of Relativity : Einstein and Other Scientist's Views And Different Aspects :

Theory of relativity meant for different things relatively.The term 'relativity' today usually implies Einstein's theory of relativity. If one ask 'what is relativity?', the answer would definetly be that is something about relative movement that Einstein explained.Einstein's theory of relativity is one of the greatest scientific theories of all time. It has radically altered our views of space, time, matter, energy, and gravity.

General Explanation:

The theory of relativity consists of two parts, special relativity, which does not concern gravity, and general relativity, which does. Special relativity is by far the simpler of the two. Einstein devised the special theory of relativity in 1905 and the general theory in 1915.

Why it is so called "relative "

lets explain why it is called the theory of relativity. It is called the theory of relativity because a large section of the theory states that everything is relative. That the measurements that you I use are not absolute.

For you and me on earth 1 minute always takes up the same time (well actually they don't but that is too complicated and besides the difference is absolutely minuscule depending on where you are on the planet). However if I were on Jupiter then a 1 minute would take up a different amount of time.
Different Aspects Of The Theory :
Time Dilation: Time slows down for a moving observer, i.e. if an observer at rest and an observer in motion are given two identical clocks, then the moving observer's clock will tick more slowly than the clock of the observer at rest.
Length Contraction: An object such as a meter stick shrinks in the direction in which it is moving, shrinking to zero length in the limit in which its speed approaches the speed of light.
Mass Increase: As an object approaches the speed of light, its mass increases, approaching infinity.

Gravity Influence

The theory states that gravity affects speed. Lets say that there are 3 people two are on two different planets and the third is in space as an observer. Now lets say that the two people on the planets are exactly the same for all intents and purposes there clones and both of them have to do the same activity in a certain amount of time. Well both of them would do the activity and finish at the same time right? However the person in space observing them would see one person did his activity faster. The theory of relativity states that the higher the gravity then the slower you get. However since everything slows down you slow down as well and don't realize that your slowing down since the neurons in your brain are slowing down.

Galileo Galilei (1632) 

Galileo Galilei initially portrayed 'the guideline of relativity' in 1632 in his 'Dialog Concerning the Two Chief World Systems'. Galileo utilized the sample of a boat going at consistent pace, without shaking, on a smooth ocean; any spectator doing movement analyzes underneath the deck would not have the capacity to tell whether the boat was moving or stationary. This lead Galileo to express that the laws of physical science are the same in any framework that is moving at a consistent speed in a straight line, paying little heed to its specific velocity or course. Henceforth, there is no total movement and no supreme rest. 

This was a broad and truly visionary understanding by Galileo, more than two centuries relatively revolutionary. The rule is in some cases called 'Galilean relativity'. 

Sir Isaac Newton (1687) 

Galileo's work given the essential system to Sir Isaac Newton's three laws of movement, distributed in his fantastic 1687 work, now known as the 'Principia'. Thus Galileo's relativity rule is additionally at times, maybe wrongly, called 'Newtonian relativity'". 

Dr Mahesh C. Jain:
has written the book "Encounter of Science with Philosophy - A synthetic view" covering various aspects of cosmic phenomena as appreciated by him by reappraising scientific knowledge that has accumulated during the past few centuries.It should be noted that the theory of relativity talks about other things as well. Such as how weight and distance are also relative however most of the time when people are talking about the Theory of Relativity they are talking about the time aspect. But to give you a quick answer to how speed and gravity affect weight and distance the faster you go the heavier you get and also the faster you get then the shorter distance become. So if you were carrying a feather and a meter stick while running at an incredible speed the feather would weigh more and the meter stick would be shorter.