Video clips
QI - Stephen Fry pops balloons with a laser pen
Stephen Fry demonstrates how a laser pen can pop balloons. Alan Davies thinks he's spotted something racist.
QI - Stealing a bike
Alan has trouble concentrating and is confused when he hears someone was lynched for the most peculiar reason.
QI - Square Bubbles
Stephen demonstrates the possibility of a square bubble.
QI - Hydrophobic Sand
Stephen conducts an interesting experiment with sand and water.
QI - Which Australian animal is the most dangerous?
The panellists discuss the most dangerous animal in Australia.
QI - Jacobson's organ
Stephen asks, 'who gets the most use from Jacobson's Organ?'