Could Time Travel Be Real? 时空穿梭成真？
英语学习点: Physics Vocabulary 物理词汇
This discovery could overturn Einstein's theory of special relativity
A discovery in the last week has turned physics on its head.
A team of scientists have said that they recorded subatomic particles called neutrinos travelling faster than light. No-one thought that was possible.
It is a finding that could overturn one of Einstein's long-accepted fundamental laws of the Universe.
The finding was made by researchers at Cern in Switzerland and Gran Sasso in Italy.
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The speed of light is a cornerstone in Einstein's theory of special relativity, which is what gives us the concept of causality: causes precede effects.
Among the implications of this challenge to mainstream theory is the fact that it could mean time travel is possible, a hypothesis that has long convinced writers of science fiction.
But the experiment has its sceptics. A physicist from the University of Surrey, Jim Al-Khalili, believes that the current consensus is correct and that the light-speed barrier is impossible to surpass.
He has tried to pick holes in the methodology of the Cern researchers. So sure is Al-Khalili that they have made an error in their measurements that he has decided to defend the laws of physics by challenging the laws of social convention.
Al-Khalili said: "If the Cern experiment proves to be correct... I will eat my boxer shorts on live TV."
Glossary 词汇表 (收听发音, 请单击英语单词)
- to turn something on its head 完全改变
- subatomic particle 次原子粒子
- to overturn 推翻
- long accepted 长期被认可的
- cornerstone 基石
- theory of special relativity 狭义相对论
- the concept of causality 因果关系的概念
- implications 影响，含义，推断
- mainstream theory 主流理论
- time travel 时空穿梭
- hypothesis 假设
- science fiction 科幻小说
- experiment 实验
- sceptic 怀疑论者
- current consensus 当前的共识
- the light-speed barrier 光速障碍
- overcome 克服
- to pick holes in something 寻找漏洞
- methodology 方法论，方法学
- social convention 社会惯例，常规
