Videos: Weird Science

Richard Ambrose and Jonny Phillips journey underground to tour London's sewers. This extensive sewage system handles over 25 million tons of human waste annually, while coping with cooking-fat blockages and rats.

Visit the Becton Sewage Treatment Works € one of Europe's biggest plants € which processes sewage from 3.4 million Londoners into water clean enough to return to the Thames.

Richard Ambrose and Jonny Phillips visit a state-of-the-art milking station that is fully automated and can milk 70 cows three times a day.

Watch as motorcycle helmets endure extreme testing so they can protect wearers from weather, debris, and hard impacts.

Visit a laboratory where crash test dummies undergo high-impact testing to ensure they accurately simulate the human body in a car accident scenario.

Have you always wanted to own a hovercraft but can't afford one? Richard Ambrose and Jonny Phillips might have the answer. Learn how you can build your own using plywood and a leafblower € and ride on air in no time!

Airships once dominated long-distance travel, until a series of high-profiles disasters-like the Hindenburg € damaged their reputation. Learn all about the history of balloon flight.

Jonny Phillips investigates the theory that € if powerful enough € a magnet can erase a laptop's hard drive.

Is it possible to survive being stuck in quicksand? Jonny Phillips risks life and limb to experience firsthand what it is like to slowly sink into quicksand € just a few feet away from an incoming tide.

Visit a factory in Yiwu, China, where workers use 500,000 tons of polyethylene plastic to make five million Lucy dolls each year.

Watch Richard Ambrose and Jonny Phillips quickly construct a building made of concrete canvas € a material that has all the elements of concrete, but is flexible enough to be turned into any shape. This technology allows people to erect permanent structures in a fraction of the time needed for traditional building techniques.

Two high-school nerds accidentally create the woman of their dreams when an electrical storm short circuits their home computer. Silly fun!

The world's first passenger-carrying hot air balloon flew over France in 1783. Join Richard Ambrose and Jonny Phillips as they explain how today's hot air balloons become light enough to leave the ground.

Is custard really explosive? Jonny Phillips discovers the shocking truth that € in certain circumstances € custard powder can indeed be explosive, and he experiments to prove the point.

Visit a medical laboratory to see how artificial eyeballs are made. Every single eye is made by hand and precisely tailored to its wearer.