英语标准美文100篇 100
时间：2018-11-30 作者：英语课 分类：英语标准美文100篇
Traveling in Time
You cannot change the laws of physics ... but could physics actually enable us to travel through time?
It might sound crazy, but according to Einstein's theories, there's no logical reason why time travel isn't possible.
Time travel is clearly a trickier 1 proposition than space travel,though. And prior to Einstein, it would have been deemed utterly 2 impossible！ That's because the old idea about time was that it was like a cosmic metronome keeping a regular and constant beat throughout the universe. And it was thought to move in one direction only .
However, what physicists 3 now know is that time is rather more flexible than the old “ Clockwork Universe” ideas they had it. And it was Albert Einstein who set the cat among the pigeons.
Einstein's theories about time and space were revolutionary. He became a celebrity--and not just in scientific circles. It's only since he published his theories that scientists have been able to demonstrate that space and time really behave the way he said they did.
In 1971, after Einstein's death, two scientists were able to carry out a crucial experiment. They used two atomic clocks, synchronized 4 them, and placed one on a plane, while the other stayed in the same location on Earth. The plane then flew around the world for 80 hours. According to Einstein's theory, the clock on the plane would be expected to have lost time, due to being in motion over 80 hours compared to the clock on the ground. When they brought the clocks together and made a comparison, the clock on the plane was indeed a few nanoseconds slower than the other clock. The experiment was replicated 5 in 1996 with advanced technology, and it was proved again--with an even bigger time difference this time. Which proves that not only is time “ warp-able” , but Einstein was arguably the greatest thinker the world has ever seen.
If it were possible, however, it would present some pretty knotty 6 paradoxes 7... For example, what if someone or something traveled back in time and changed the ensuing future? And have you heard the one about the time traveller who dots back and forward in time and by means of various medical technologies is able to be his own father AND mother?! And besides, if time travel is possible, where are all the people from the future--surely they'd want to come and meet us poor stranded 8 21st century beings?
- This is the general rule, but some cases are trickier than others. 以上是一般规则，但某些案例会比别的案例更为棘手。 来自互联网
- The lower the numbers go, the trickier the problems get. 武器的数量越低，问题就越复杂。 来自互联网
- Utterly devoted to the people,he gave his life in saving his patients.他忠于人民，把毕生精力用于挽救患者的生命。
- I was utterly ravished by the way she smiled.她的微笑使我完全陶醉了。
- For many particle physicists, however, it was a year of frustration. 对于许多粒子物理学家来说，这是受挫折的一年。 来自英汉非文学 - 科技
- Physicists seek rules or patterns to provide a framework. 物理学家寻求用法则或图式来构成一个框架。
- Do not use the synchronized keyword in Managed Objects. 不要在管理对象上使用synchronized关键字。 来自互联网
- The timing of the gun was precisely synchronized with the turning of the plane's propeller. 风门的调速与飞机螺旋桨的转动精确同步。 来自辞典例句
- Later outplant the seedlings in a replicated permanent test plantation. 以后苗木出圃栽植成重复的永久性试验林。
- The phage has replicated and the donor cells have lysed. 噬菌体已复制和给体细胞已发生裂解。
- Under his leadership,many knotty problems were smoothly solved.在他的领导下，许多伤脑筋的问题都迎刃而解。
- She met with a lot of knotty problems.她碰上了许多棘手的问题。