Catalyst - Torture - Kepler SpaceTelescope - Total Eclipse - Rewiring Spinal Nerve Damage

Seizoen: 2012 - Aflevering: 24 / 120 - Eerst uitgezonden: 01 november 2012 - Episode ID: 685318

Dr Derek Muller travels to Lausanne, Switzerland, where he discovers the true power of delicious Swiss chocolate - motivating paralysed rats to walk again.