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British scientists Richard Ambrose and Jonny Phillips return with a new series of this fun-but-informative show that explains...

The evolution of the machine gun from its use in WWI to the GAU-8 Avenger, one of the deadliest machine guns in the world.

Climb inside an Abrams M1A2 tank before it goes off to war and trace the tank’s journey from WWI to modern-day war machine.

Experts investigate whether someone can really be capable of killing while they're asleep and if sleepwalking is a valid...

Experts and modern seers examine the work of Nostradamus to see whether the future really can be predicted.

Watch as a selection of history's most gruesome projectile weapons are tested for their accuracy and deadliness.

Introducing the bone-crunching, flesh-tearing series that takes an alternative look at ancient weaponry.

Climate experts examine what effect each rise of 1ºC could have on the world.

This time the Planet Mechanics are tackling one of the world’s biggest problems, traffic pollution.

The next morning, and the whole bike has to be stripped down to get to the heart of the problem.

Jem’s working on the mounts for the air tanks. They’re coated with carbon fibre, a material that can’t be welded. He...

It’s not nearly as much as Jem wanted so he’s ordered the best air motors he can find, but these motors are normally used...

So they’re building a moped powered by fresh air. They’ll replace the petrol engine with an air motor and the gas tanks...

Fortunately they still have the oil they made earlier. So it’s time for the ultimate test: will that oil fire up the grain...

A few weeks later, Dick and Jem are back and can’t wait to see how much the gas tank has risen.