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The Big Bang Theory Season 3 Episode 15

The Large Hadron Collision

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.

The Big Bang Theory Season 3 Episode 15
The Big Bang Theory Season 3 Episode 15
Feb 08, 2010

The Big Bang Theory season 3

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