| Themes > Science > Physics > Elementary particle physics > An Introduction to Particle Physics > An Introduction to Particle Physics > Probing Particles |
Experiments at particle accelerators, such as LEP, where sub-atomic particles collide at very high energies, reveal details of particlesand conditions that prevailed just after the Big Bang over 15 billion years ago. Most experiments involve large international collaborations and are performed atoverseas laboratories such as CERN in Geneva and DESY in Hamburg. These collaborations typically involve more than 300 people and the work at CERN is supported by 19 European countries. |
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