Air date: 2007-04-11

Runtime: 22 min

Go beneath the surface to understand forest fires, car exhaust and the space station.

Air date: 2007-04-11

Runtime: 22 min

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

Air date: 2007-04-18

Runtime: 22 min

Secrets behind nuclear submarines; crash-test dummies; growing fruits and vegetables.

Air date: 2007-04-18

Runtime: 22 min

The world's largest land-mining machine; how airboats are built; warehouse for car parts.

Air date: 2007-04-25

Runtime: 22 min

How black boxes survive an airplane crash; transporting giant steam turbines; making fireproof suits for race-car drivers.

Air date: 2007-04-25

Runtime: 22 min

The design and manufacturing of large jet engines; non-lethal weapons that stun without killing; the world's largest telescope.