Special Relativity
Special Relativity is one of the greatest work by any scientists. It was gives by Albert Einstein. This theory governs all the macroscopic and microscopic objects........But what is the Special Relativity??? Lets unfold the pages...
Today my friend came to me asking me explain special relativity. Thou i knew what it is, it was simply impossible to explain to some with positively no knowledge of general relativity and variating constants with the speed of light. For me, it was something like explaining differential integration to a 3rd grade student(if he is not albert einstein).... But i took up the task.....and explanation went something as follows--
Name something that is constant--Mass??---no----this is were special relativity arrives. Special relativity talking in general for simplicity, is a theory which tells the effect on a body when it travels at or greater than speed of light. The effect is implied upon such things which we think are constant(as told by our teacher, possibly after reading this, you are going to have a good combat with them....) and ya not to forget, the Time Dilation... For example: mass, length of a body, volume etc (without any external agency)...
What the theory says is that if a body of some mass and some length travels with or above the speed of light, then its mass and length differs from the actual value when it was measured at earth..that is "with respect to earth" hence in relation to it...therefore named SPECIAL RELATIVITY...were speed of light is the SPECIAL condition..
MATHEMATICALLY---
If m is the mass of body at steady position, the its mass at speed of light M will be given by----
M = m{ 1/ whole root(1-V*V/C*C) }
where v is the speed of body and c is the speed of light....
You know whats the best part, in place of mass M at steady position you can put any constant value like volume, length, etc and get its value at speed of light....
this may help you
The Time Dilation
Thank you for writing some clear equations that enable me to understand what is happening here. I am beginning to understand that the relativistic effect for mass increase and time dilation does not become very large until an object gets to a significant portion of the speed of light. For example at one tenth the speed of light it is tiny and almost negligible. So special relativity has to due with relativistic effects on mass and time dilation. General relativity has to due with how much mass curves space/time. I'm also beginning to understand why molecular motion and life would slow down as an object such as a spacecraft approaches the speed of light. Since the movement of fluids and molecular motions and all life's interaction with matter would come to a halt at the speed of light, people at a value close to that would live in a very weird world from the point of view of an outside observer. They would seem to live in slow motion. This is very weird stuff, but I know atomic clocks slow down just a tiny, tiny bit when they are in orbit for a long time. We've measured this.
ReplyDelete