The Large Hadron Collision
| Episode Number | 15 |
|---|---|
| Season | 3 |
| Aired | 2010-02-08 |
| Overview | 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. |
| Runtime | 25 minutes |
| Absolute Number | 55 |
| Finale Type |