Racing with fire extinguishers

The science of spittle.

CO2 the sequel; racing with fire extinguishers!

Dr Bunhead peddles more unwanted science tricks down at his local boozer.

We use science to turn a softie into a fully-fledged hard man.

Spoilsports! The Brainiac Sports distraction team are let loose on the golf course.

Viewer Jade Hudson uses hamster power to fire up her telly.

And Brainiac goes interactive offering one lucky viewer a starring role on the final show of the series!

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S02E08 - Which is Britain's best sport