Owain and Tilly find out why you float in the Dead Sea, how to pump up the volume with some DIY speakers, and discover the ways science is helping to save the Great Barrier Reef! Show more

Owain and Tilly find out how to make totally trashy music, discover we all grow and shrink in a day, learn that a volcano can erupt in the kitchen, and order a burger from a robot! Show more

Owain and Tilly discover how to shrink your friends with trick photography, meet the smallest robots and the largest machine on Earth, and explore the weird world inside a mirror! Show more

Owain and Tilly discover a weird way to puzzle your pupils, reveal the fizzy secrets of sand, find out static electricity can be attractive and bust some earthquake dance moves! Show more

Owain and Tilly discover the hair-raising science of static electricity, why party leftovers can help you to float your boat, and find out how one day we might all be able to fly!

Owain and Tilly find out how to tell the time without a watch, get a kick out of homemade animation, discover a plane inspired by boats, and see objects being dropped on the moon!

Owain and Tilly find out how a balloon can help keep a secret, fly a helicopter that you build at home, and discover the nature-inspired robots that could take over the world! Show more

Owain and Tilly discover how science can help you win a water balloon battle, try a trick to totally frame your friends, and explore the secrets of balance with a one-legged test!

Owain and Tilly find out how to make super-cool spy tools, take one giant leap for mankind without leaving the ground, and discover a surprising way to turn milk into plastic! Show more

Owain and Tilly discover a trick to turn something visible invisible, investigate the fascinating science behind your pupils, and use the power of the sun to heat a tasty treat! Show more

Owain and Tilly find out how to catch your friends in a cup, explore ways to make music with objects from around your home, and get to grips with some weirdly wonderful wire! Show more

Owain and Tilly discover how to turn bad beats into good vibrations, learn some top tricks guaranteed to give you goosebumps, and we meet Sammy, the spectacular, swimming squid!

Owain and Tilly discover how to sleep beneath the stars from the comfort of your bed, feel the pressure of a blast-off battle, and find out that seeing double depends on your point of view!

Owain and Tilly discover the science behind floating, go with the flow for a perfectly balanced trick, try a circular illusion, and find out how not to fold under pressure!

Owain and Tilly discover the secret of turning one bubble into two, find out how to make sound effects with a spring, and use brightly coloured jelly to give your brain a wobble!

Ben Robinson unearths the past of Porthgain, Pembrokeshire, built for its industry exporting slate, then brickwork, then finally stone used for the nation’s roads. Show more

Ben Robinson travels to Cushendall in Northern Ireland to explore the Curfew Tower and schoolhouse, built by its forward-thinking 19th-century merchant landlord. Show more

Ben Robinson heads to Beer, Devon, home to beer stone, which has been quarried since Roman times and used in many of England's cathedrals and iconic buildings. Show more

Ben Robinson travels to Seaton Sluice, home to the notorious Delaval family and the site of a past bottle works that shaped the village. Show more

Ben Robinson unearths the past of Greyabbey, a village on Northern Ireland’s beautiful Strangford Lough, and discovers the history of its moneymaking kelp industry. Show more