JustWatch
S04 Episode 1
Forest Fires, Car Exhaust, Space Station
Go beneath the surface to understand forest fires, car exhaust and the space station.
22 mins · Wed, 11 Apr 2007
S04 Episode 2
Family Car, Titanium, Letter
How a spacesuit keeps an astronaut alive, the diesel engines that power the world's biggest ships, and the manufacturing processes behind the famous neon signs which cover Las Vegas
22 mins · Wed, 11 Apr 2007
S04 Episode 3
Nuclear Sub, Crash Test Dummies, Fruit and Vegetables
Secrets behind nuclear submarines; crash-test dummies; growing fruits and vegetables.
22 mins · Wed, 18 Apr 2007
S04 Episode 4
Land Mines, Air Boats, Warehouses
The world's largest land-mining machine; how airboats are built; warehouse for car parts.
22 mins · Wed, 18 Apr 2007
S04 Episode 5
Black Boxes, Steam Turbine, Racing Car
How black boxes survive an airplane crash; transporting giant steam turbines; making fireproof suits for race-car drivers.
22 mins · Wed, 25 Apr 2007
S04 Episode 6
Jet Engine, Weapons, Telescope
The design and manufacturing of large jet engines; non-lethal weapons that stun without killing; the world's largest telescope.
22 mins · Wed, 25 Apr 2007
