The Big Bang Theory - The Large Hadron Collision

Seizoen: 3 - Aflevering: 15 / 56 - Eerst uitgezonden: 08 februari 2010 - Episode ID: 468843

Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland on Valentine's Day.

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