Albert Einstein is my idol...Really admire him for his great Theory of Relativity...I hope I can understand more about this theory...who understand it better than me can teach me about it???
Here is part of my understanding about this theory...
Relativity explains the way an object appears to be relative to an observer. Imagine you are in a car, observing other car travelling at 20 km/h. If your car is stationary, then the other car's speed relative to you is 20 km/h. However if you are also travelling at 20km/h, then the other car seems to be stationary compared to you. Its speed relative to you is zero!
According to Einstein, time and length are not absolute, but depend on the relative motion of the object and the observer. If you are stationary, an object that is moving seems to get shorter and heavier, and time slows down for the object. In everyday situations, the slight changes are immeasurable, but they become obvious as the speed increases towards the speed of light. As the object travels closer to the speed of light(c), the length of the object appears closer to zero.
Velocity ---> c
Length ---> 0
However if you are travelling at the same speed as the object, then everything looks normal! The 'contraction' of moving objects is the contraction of space itself not the object within space.
Time changes when you move through space.If you stand still, you are only moving through time. If you move at the speed of light, you move through space only and not through time — time stands still. In between, you move partly through one and partly through the other!
This is not nonsense...There's an experiment which proves this~~~
Famous twin trip experiment
Twin A travels round the world at fast pace in a space ship while the twin B stands still. When twin A returns, (s)he will be younger than twin B. Twin B has moved only through time, twin A has moved partly through space and only partly through time — less time than the twin who stayed still.
Amazing right? It's so unbelieveable, but we must remember, we can't say we don't believe in it, we can't accept it, it's just that our knowledge level, or i should say human's knowledge level, is not high enough to fully understand all these...
Here is part of my understanding about this theory...
Relativity explains the way an object appears to be relative to an observer. Imagine you are in a car, observing other car travelling at 20 km/h. If your car is stationary, then the other car's speed relative to you is 20 km/h. However if you are also travelling at 20km/h, then the other car seems to be stationary compared to you. Its speed relative to you is zero!
According to Einstein, time and length are not absolute, but depend on the relative motion of the object and the observer. If you are stationary, an object that is moving seems to get shorter and heavier, and time slows down for the object. In everyday situations, the slight changes are immeasurable, but they become obvious as the speed increases towards the speed of light. As the object travels closer to the speed of light(c), the length of the object appears closer to zero.
Velocity ---> c
Length ---> 0
However if you are travelling at the same speed as the object, then everything looks normal! The 'contraction' of moving objects is the contraction of space itself not the object within space.
Time changes when you move through space.If you stand still, you are only moving through time. If you move at the speed of light, you move through space only and not through time — time stands still. In between, you move partly through one and partly through the other!
This is not nonsense...There's an experiment which proves this~~~
Famous twin trip experiment
Twin A travels round the world at fast pace in a space ship while the twin B stands still. When twin A returns, (s)he will be younger than twin B. Twin B has moved only through time, twin A has moved partly through space and only partly through time — less time than the twin who stayed still.
Amazing right? It's so unbelieveable, but we must remember, we can't say we don't believe in it, we can't accept it, it's just that our knowledge level, or i should say human's knowledge level, is not high enough to fully understand all these...
1 comment:
Omg~ Kaihan's physic's cells activated~ whew~ hope nex year when i meet u.. you're stil having black hair~ haha~ LOL
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