Theory of relativity

Hi.
I have read theory of relativity in first year of my engineering, but never understood it completely.
Its mathematical formulation is E= MC* where*= 2.
Some of the deductions that were derived from this are:
- Time is not constant, it varies and hence we have more then three dimensions.
- Mass and energy can be interchanged at speeds comparable to that of C(c=3X10*,*=8).

E=MC²
Energy is equal to the Mass times the Constant Squared.

That is saying that Energy is equal to a given amount of material multiplied by 186,000,000 X 186,000,000 (the approximate speed of light in miles per second).

The speed of light was thought to be constant (the C in the equation), but we now know that there are circumstances which can change this speed. Light travels slower through water than air, and faster through a vacuum, as in space. Electrical charges can also have an influence on speed.

The equation is a calculation to give the total amount of energy which may be acquired from the mass, nowhere near what we can achieve.

There is much more to the equation, but it is a calculation of energy vs mass vs speed.

Think of it this way. If you took your clock off the wall and layed it on the floor,then made yourself super small,so small you could stand inbetween the second lines.Would the second hand go by super fast,or would it still take a second to go by?Would it knock you over from the wind?