Season 13

1. Hammers, Swiss Cheese, Roller Skates, Coloured Pencils

Find out how hammers , Swiss cheese , roller skates and colored pencils are made.

2009-05-01 • 21 min

2. Carbon Fiber Bicycles, Blood Products, Forged Chandeliers, Ballpoint Pens

Learn how carbon-fiber bicycles , blood products , forged chandeliers and ballpoint pens are made.

2009-05-01 • 21 min

3. Swiss Army Knives, Player Piano Rolls, Oil Tankers, Racing Wheels

Learn how Swiss army knives , piano player rolls , oil tankers and racing wheels are made.

2009-05-08 • 21 min

4. Bowling Balls, Barber Poles, Felt, Radar Guns

Featuring bowling balls , barber polls, felt and radar guns .

2009-05-15 • 21 min

5. Copper Pipe Fittings, Cylinder Music Boxes, Pepper Mills, Hot Rod Steering Columns

Get the story behind copper pipe fittings , cylinder music boxes, pepper mills and hot rod steering columns .

2009-05-22 • 21 min

6. Gears, Leather Watchbands, Vitrelle Dishes, Kitchen Shears

Learn how gears , leather watchbands, vitrelle dishes and kitchen shears are made.

2009-05-29 • 21 min

7. Pressure Cookers, Mechanical Singing Birds, Oceanographic Buoys, Tank Trailers

Find out how pressure cookers, mechanical singing birds , buoys and stainless-steel tank trailers are made.

2009-06-05 • 21 min

8. Aluminum Boats, Alpine Horns, Luxury Watches

Get the story behind aluminum boats, alpine horns and luxury watches.

2009-06-12 • 21 min

9. All-Terrain Vehicles, Alpine Skis, Laser Cutters, Marble Sculptures

Learn how All-Terrain Vehicles, Alpine skis , laser cutters and marble sculptures are made.

2009-06-19 • 21 min

10. Socket Sets, Leather Shoes, Aluminum Water Bottles, Bike Chains

Featuring socket sets, leather shoes , aluminum water bottles and bike chains.

2009-07-03 • 21 min

11. Carved Wood Sculptures, Flatware, Cow Bells, Fountain Pens

It's carved wood sculptures , flatware , cow bells and fountain pens.

2009-07-10 • 21 min

12. Olive Oil, Lift Trucks, Seamless Rolled Rings, Ski Boots

Learn how olive oil , lift trucks , seamless rolled rings and ski boots are made.

2009-07-17 • 21 min

13. Cookware, Inlaid Boxes, High-Efficiency Water Heaters, Vespa Scooters

It's professional cookware , luxury inlaid boxes , high-efficiency water heaters and Vespa scooters.

2009-07-24 • 21 min