special Theory Of Relativity Part 1

A. The core of special relativity

The special relativity suggest that observers that observe same kind of Objects may have different results because their observing ways or because of their position is different . (doesn’t work when position and way of seeing is the same)

From the statement above we can conclude that different observers will have different observing results and observing reports. The special relativity states everything that can cause different in results .

For example :

If we have a truck moving uniformly in a straight line (v=40m/s). in the truck back someone are playing baseball (v ball =150m/s). one of the observer is measuring the speed of baseball from a piece of ground near the truck while one more is measuring the speed of baseball from the back of truck and is moving with the truck. What is the result that the observers may get ? give the reason in a simple way!

If we see from observer 1 in the ground , he might get the result ofit may conclude Obsever 1 will calculate the speed of baseball + speed of truck ( Baseball is relative to the truck).

Observer B will see the baseball moving only 150m/s as observer b is relative to the truck so it calculates only the speed of the ball not the truck + the ball.

Conclusion: Different observer may cause Different Result