Richard and Jonny prove the effectiveness of the concrete bomb versus conventional explosives in their biggest and most...
(03:26)Egyptologist Zahi Hawas shares his excitement as mysterious mummies surrender their secrets under a pioneering CT scan.
(01:19)In 1954, disaster struck again when a third Comet jet airliner crashed, throwing the future of commercial aviation into question.
(01:00)Unravel a chain of critical events in the hours and minutes before the 9/11 attack.
(00:52)What an international recovery effort discovers at the bottom of the Atlantic sends shock waves around the world.
(00:53)Could a vital missing piece of equipment be responsible for the crash?
(01:03)This was no ordinary flight but a military jet carrying American politicians. Was it an act of war that brought it down?
(01:11)In 1991 something happened on board a 737 that sent shudders through the world of aviation.
(01:20)Fire breaks out in the cargo hold of a 747 heading for South Africa and there’s only one way to clear the smoke – open the...
(01:16)A lethal combination of pilot error, the devastating effects of severe weather and a dangerous race to keep the plane on schedule.
(01:49)What caused China Airlines Flight 611 to crash? One piece of wreckage has the answers.
(01:06)Wayne County Jail, Detroit, is targeting habitual femail offenders, for help, not punishment.
(00:52)Discover how weapons have been used to smash skulls for centuries in Skull Smashers.
(01:41)This time the Planet Mechanics are tackling one of the world’s biggest problems, traffic pollution.
(02:12)Now it’s time for Dick and Jem to proudly reveal their new thoroughbred delivery vehicle to the expectant new owners.
(04:55)The next morning, and the whole bike has to be stripped down to get to the heart of the problem.
(02:55)Jem’s working on the mounts for the air tanks. They’re coated with carbon fibre, a material that can’t be welded. He...
(02:55)The next morning and the Planet Mechanics’ eco-workshop is up and running. Dick and Jem are in the south of England on their...
(02:52)So they’re building a moped powered by fresh air. They’ll replace the petrol engine with an air motor and the gas tanks...
(02:55)This time the Planet Mechanics are tackling a tricky challenge down on the farm. Can they tame this fuel-guzzling monster, by...
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