S4
Season pulse
Episodes
6 episodesForest Fires, Car Exhaust, Space Station
Go beneath the surface to understand forest fires, car exhaust and the space station.
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
Nuclear Sub, Crash Test Dummies, Fruit and Vegetables
Secrets behind nuclear submarines; crash-test dummies; growing fruits and vegetables.
Land Mines, Air Boats, Warehouses
The world's largest land-mining machine; how airboats are built; warehouse for car parts.
Black Boxes, Steam Turbine, Racing Car
How black boxes survive an airplane crash; transporting giant steam turbines; making fireproof suits for race-car drivers.
Jet Engine, Weapons, Telescope
The design and manufacturing of large jet engines; non-lethal weapons that stun without killing; the world's largest telescope.