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The Big Experiment 大型強子對撞機試驗
[ 2008-09-12 11:52 ]

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The Big Experiment 大型強子對撞機試驗

Could the LHD unveil the secrets of the universe?

You might have never heard of the CERN laboratory, but this is all about to change.

On 10th September 2008 the most powerful scientific experiment ever attempted will take place at this quiet research centre near Geneva on the border of France and Switzerland.

Buried underground, the Large Hadron Collider (LHC) is about to be switched on. In laymen's terms, it is a kind of time machine that could open a window on how the universe appeared in the first few microseconds of its existence.

Particle accelerators and detectors are the key parts to the whole experiment. The accelerators are housed in a near circular tunnel under the Jura Mountains, buried between 50 – 175m underground at various points.

Beams of protons will be accelerated in opposing directions and smashed into each other at near light speed, and in conditions colder than the space between the stars.

In order to photograph the moment of these explosive collisions, detectors, which are as large as a five-storey building, have been built at CERN, yet they're capable of pinpointing a particle with an accuracy of 15 microns, that's 20 times thinner than a human hair.

The journey to build this giant experiment has taken 14 years, more than 10,000 scientists from 40 countries and a whopping £5 billion (60 billion yuan) to complete.

If the experiment succeeds in recreating the conditions soon after the Big Bang, scientists are hoping to discover new physics which may answer questions about what the universe is made of, and how it came to be the way it is.

However, not everyone is eagerly anticipating the big day. There are fears that the experiment could open black holes and the whole planet might disappear. But Professor Sir Chris Llewellyn Smith says there's no threat at all.

"The chance we produce a black hole is minuscule, it's one of the wildest speculations. But even if we do, it can't swallow up the earth," he said.

GLOSSARY 詞匯表 (收聽發(fā)音, 請單擊英語單詞)

 

The Big Experiment 大型強子對撞機試驗CERN
歐洲粒子物理實驗室

The Big Experiment 大型強子對撞機試驗Large Hadron Collider
大型強子對撞機

The Big Experiment 大型強子對撞機試驗in laymen's terms
簡單來說

The Big Experiment 大型強子對撞機試驗particle accelerator
粒子加速器

The Big Experiment 大型強子對撞機試驗detector
探測器

The Big Experiment 大型強子對撞機試驗circular tunnel
圓形隧道

The Big Experiment 大型強子對撞機試驗a beam of protons
一束質(zhì)子

The Big Experiment 大型強子對撞機試驗accelerated
被加速

The Big Experiment 大型強子對撞機試驗smashed
被碰撞

The Big Experiment 大型強子對撞機試驗light speed
光速

The Big Experiment 大型強子對撞機試驗explosive collision
爆炸性的沖撞

The Big Experiment 大型強子對撞機試驗pinpointing a particle
精確的鎖定一顆粒子

The Big Experiment 大型強子對撞機試驗micron
微米

The Big Experiment 大型強子對撞機試驗whopping
巨大的,天大的

The Big Experiment 大型強子對撞機試驗Big Bang
宇宙大爆炸

The Big Experiment 大型強子對撞機試驗black hole
黑洞

The Big Experiment 大型強子對撞機試驗miniscule
極小的

The Big Experiment 大型強子對撞機試驗wildest speculation
不切實際的推測

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