Bang Goes The Theory

Season 6

Philippa takes her pet to a lab to find out how dogs can be good for people's health.

Jem heads for his workshop to build a solution to traffic jams: a man-powered aeroplane.

Jem dreams of flying under his own power by pedalling a homemade plane into the air.

The health risks of wireless signals are examined. Also: wire-free electricity.

Dallas finds out how crowds can co-operate subconsciously, Liz sees how architects control the flow of crowds, and Jem meets scientists trying to understand how crush injuries can occur. Plus, 80s number cruncher, Johnny Ball, demonstrates just how biologists measure population size.

Liz finds out how safe digital storage formats such as DVDs and memory sticks are, and whether the Cloud answers all our problems. Dallas and Jem see what it takes to properly wipe your computer memory, and Maggie Philbin revisits phone security after nearly 30 years

The team investigates the effects of modern life on a person's hearing, and Jem Stansfield sets out to record the sound of a centipede's footsteps. Plus, Dallas Campbell discovers how safety conscious scientists are putting the noise back into driving, and Liz Bonnin learns to like the sound of being sick

Investigating the price of petrol, and whether science can be used to make fuel for free. Plus, Liz Bonnin experiences life on an oil rig, Jem Stansfield and Dallas Campbell take on a DIY fuel challenge, and the team explores a link between fossil fuels and a recent earthquake in Lancashire.