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BBC - The Big Bang Machine (2008)
English | XviD MPEG-4 codec | 780 x 504 | MP3 VBR ~122 kbps | 25 fps | 45 min | 700 MB
Synopsis:
Professor Brian Cox visits Geneva to take a look around Cern’s Large Hadron Collider before this vast, 27km long machine is sealed-off and the experiment to create the simulation of a black hole begins. When it’s up and running, it will be capable of creating the conditions that existed just a billionth of a second after the Big Bang. Brian joins the scientists who hope that the LHC will change our understanding of the early universe and solve some of its mysteries. The Large Hadron Collider is not just an extraordinary science experiment, it is also a remarkable engineering undertaking. As BBC science reporter James Morgan relates, just getting it built is an astonishing story in itself.
How do you build a "Big Bang Machine"? That was the challenge which scientists at Cern began to ponder in the early 1980s, when the idea for the Large Hadron Collider was born.
Cern's governing council wanted to build a kind of time machine that could open a window to how the Universe appeared in the first microseconds of its existence.
If it could recreate the fleeting moments 13.73 billion years ago, when the fundamental building blocks of the cosmos took shape, then the world we live in today would be brought into much sharper focus.
It could discover how matter prevailed over antimatter, learn how dark matter was formed, and catch our first glimpse of the elusive Higgs boson - a "missing jigsaw piece" in our model of the universe.
We might even find evidence of the existence of other dimensions. But to conjure up these conditions, the Cern council knew it needed to perform an engineering miracle
To generate the necessary high energies, the designers required a particle accelerator more magnificently complex than any machine ever built.
Beams of protons would be hurled together at 99.9999999% of the speed of light, in conditions colder than the space between the stars and each travelling with as much energy as a car at the speed of 1,600km/h.
And yet the fruits of these explosions - high-energy particles - would decay and disappear from view in less than a trillionth of a second.
To "photograph" these valuable prizes would require a detector as large as a five storey building, yet so precise, it could pinpoint a particle with an accuracy of 15 microns - 20 times thinner than a human hair.
How on earth do you build a machine like that? The journey took 14 years, more than 10,000 scientists, from 40 countries, and a financial injection anticipated at up to 6.2bn euros - four times the original budget. But it was achieved, on time.
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IN VIATA NU E IMPORTANT SA AI CARTI BUNE, CI SA LE JOCI BINE PE CELE PE CARE LE AI - Josh Billings
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