T ACKNOWLEDGEMENTS

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First of all I acknowledge my students, whom I always learn from and learn together with.

I would like to thank CERN very much for giving me the permissións to use informations, data, texts and images from CERN websites.

Very special thanks to Jorge Gabriel Morales Rey for his very helpful comments, suggestions, improvements, and corrections to these web pages.

Also, thanks a lot to Ian Barry and Emily Amburgey for their help in the english translation of some parts of this website. All errors you find are only my own.

Also, I thank Mar Capeáns Garrido, José Angel Hernando Morata, Hugo Ruiz and Marcos Mariño, physicists at CERN, for dedicating time out of their busy schedule to help me.

Finally, I would like to thank CERN for permission to participate in the High School Teachers Programme 2003. Thanks to this initiative, which began in 1998, hundreds of teachers have the opportunity to find out what CERN is and how the LHC has been built.

Special thanks are due to Mick Storr, Michelangelo Mangano and Gron T. Jones for their kind assistance and great guidance.

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HST 2003

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As a result of HST Programme the teaching of particle physics is being promoted in high schools and this web is intended to contribute to this objective.