Chief Rabbi Lord Sacks meets three leading non-believing scientists.
Dr Gabrielle Walker examines ice, one of the strangest substances in the world.
Following the Fukushima radiation scare, the team turns its attention to nuclear power.
Dallas investigates a potential helium shortage, and Dr Yan tests radiation knowledge.
Dallas downs his toothbrush to discover what causes tooth decay and gum disease.
Liz investigates bedbugs, and Yan explains why statistics are not to be trusted.
Topics include new stem-cell research and the Nocebo effect (placebo's evil twin).
Jem witnesses the awesome power of rockets with the Bloodhound land speed record project.
Jane Moore investigates the stickiness of household essentials.
Liz hits the beach with the RNLI to experience the power of rip currents.
Jem makes his own diamond and then proves they aren't forever.
A look at trusted domestic life-savers including drain cleaner and mobile phone batteries.
James May asks the big questions about the weather, including what is a cloud?
Dallas Campbell asks if science will save us when Armageddon arrives.
Discussing whether scientists can be morally neutral in pursuit of scientific knowledge.