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[文化博览] 【整理】2012-03-19 阿尔伯特·爱因斯坦 Einstein—3

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[Homework]2012-03-19 阿尔伯特·爱因斯坦 Einstein—3

People didn't believe an atom in those days. But he proved that atoms can actually make small little dust particles move in a little bit.And he caculated the size of atoms.

These papers would have been a remarkable career for any physicist, but Einstein is far from finished
.

He writes yet another paper with the famous equation,E=
MC2.

At simplest level, this means energy can be count matter and matter can become energy. The tiny's spected whole potentially huge amounts of energy, and unleashed it requires a nuclear reaction. The thought going on constantly in the night sky
.

Ever since people begin to look up in the heavens. they would say, what makes the star shine.But it took Albert Einstein to answer the question. mass M. turns to E energy, that is the engine that lights up the stars
.

Today E=MC2 is Einsteis' most famous equation, but another theory he published in the same year is more important,and more controversial. This special theory of R
elativity.

When Einstain was a teenage,he enjoyed imagining what would be ride a beam of light. Now he returnes to this daydream and it changes his life
.

In the spring of 1905, Einstein was writing on a bus and he looked back at famous clock tower that dominates Bern, Switzerland, and then he imagines, what happens that bus was racing near the speed of light
.

In his imgination, Einstein looks back the clock tower and what he sees is astonishing. As he reaches the speed of light, the hands of clock appeared frozen in time. Einstein would later write, it's a storm broke in my mind. I've seen everything everything kept gushing forward. Einstein knows that back of clock tower time is passing normally,but on Einstein's light speed bus,as he reaches the speed of light, the light from clock can no longer catch up to him. the faster he races through the space,the slower he moves through time.This insight sparks the birth of Einstein special theory of relativity,which says that space and time are deeply connected,in fact they are one in the same. A flexible fabric calls
space time.



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