What is Special Relativity?


 
     In our normal life here on earth, the classical physics that came from Sir Issac Newton are more than enough to satisfy how things are working; but eventually scientists began to discover cases when things that were moving very fast (near the speed of light which is roughly 2*10^8 m/s) did not behave the way classical physics said that they should. It was Special relativity is a theory put forth by Albert Einstein in 1905 that explained what was happening. In this website, we will focus on 3 of the biggest changes that Special Relativity brought about: space, time, and Galilean transformations.
Albert Einstein
https://simple.wikipedia.org/wiki/File:Albert_Einstein_Head.jpg
Speed of light street sign in space
http://www.rpi.edu/dept/phys/Dept2/APPhys1/optics/images/space_sign_small_2.gif
     If Special relativity focuses on what happens to things as they approach the speed of light then what happens when something goes faster than light you might ask? The answer is nothing, as you approach the speed of light it takes increasingly larger amounts of energy to increase your velocity; as a result there is no known case of anything traveling at a speed faster than light and it is considered to our knowledge to be effectively impossible. This also means that the speed of light is the same no matter what frame of reference you look at it from (this will make more sense as you continue).