7.2/1012 votes#1 - Chewing Gum, Fish Hooks, Legoland
Season 9 Episode 1 - Aired 5/17/2012
How do they transform rubber into chewing gum; how do they make fish hooks strong enough to catch a shark; and how are the models built at the world's largest...
Director: N/A
Writer: N/A
- 7.4/108 votes
#2 - Leatherman, Formula 1, Glassware
Season 9 Episode 2 - Aired 7/12/2012
How do they build Formula 1 racing cars; how do they make the Leatherman, America's best-selling multi-tool; and how do they create classic Finnish Aalto glassware?
Director: N/A
Writer: N/A
- 7.3/109 votes
#3 - Hats, Longest Road Tunnel, Snake Catcher
Season 9 Episode 3 - Aired 7/19/2012
Panama hats; rounding up Florida's escaped pythons; keeping drivers safe in the world's longest tunnel.
Director: N/A
Writer: N/A
- 7.4/108 votes
#4 - World In Miniature, Rhubarb
Season 9 Episode 4 - Aired 7/26/2012
How do they build working miniature airports? How do they design houses to survive hurricanes? How is rhubarb cultivated in the dark?
Director: N/A
Writer: N/A
- 7.5/109 votes
#5 - Almonds, Snowblower
Season 9 Episode 5 - Aired 8/2/2012
How do billions of bees produce tonnes of California almonds? How do they clear the snow to keep Norway's planes in action? How are tricky stains removed?
Director: N/A
Writer: N/A
- NaN/100 votes
#6 - Fighter Plane, Trappist Beers, SUV
Season 9 Episode 6 - Aired 7/26/2012
How is a modern fighter jet built? How do Belgium's Trappist monks make the world's finest beers? How do they build America's best performing SUV?
Director: N/A
Writer: N/A
- NaN/100 votes
#7 - Guacamole, Swamp Buggy
Season 9 Episode 7 - Aired 8/9/2012
How do volcanoes help produce the world's best guacamole? How do they build trucks that can cross swamps? How do they make the world-famous Fiskars scissors?
Director: N/A
Writer: N/A
- NaN/100 votes
#8 - Suspension Bridge, Crossbows
Season 9 Episode 8 - Aired 8/23/2012
How do they make steel cables strong enough to hold up a 50,000 tonne bridge; why do modern hunters use medieval weapons; and how do shops know which clothes sizes...
Director: N/A
Writer: N/A
- 7.5/109 votes
#9 - Tennessee Whiskey, Nightvision
Season 9 Episode 9 - Aired 8/30/2012
How do they make Tennessee whiskey the traditional Lincoln County way? How do night goggles work? How do the Finnish relax in 160-degree saunas?
Director: N/A
Writer: N/A
- 7.9/1010 votes
#10 - Vanilla, Anchors
Season 9 Episode 10 - Aired 9/6/2012
How do they grow enough vanilla to make the world's favourite ice cream flavour? How are anchors for huge ships built? How are 12 million lighters made every year?
Director: N/A
Writer: N/A
- NaN/100 votes
#11 - Leather Footballs, Mussels
Season 9 Episode 11 - Aired 9/13/2012
How do they craft footballs for the National Football League? How do they farm mussels? How do they design the ultimate fighter pilot's helmet?
Director: N/A
Writer: N/A
- NaN/100 votes
#12 - Scania Trucks, Miracle Forensics
Season 9 Episode 12 - Aired 9/20/2012
How are powerful Scania trucks built? How do they use the world's biggest DNA database to solve crime? How is paraffin used to make Gouda cheese?
Director: N/A
Writer: N/A
- NaN/100 votes
#13 - Guitars, Rope Access
Season 9 Episode 13 - Aired 9/27/2012
How do they make the finest classical guitars? How do they keep the blades turning on a wind turbine? How do they produce America's ultimate mowing machines?
Director: N/A
Writer: N/A
- 7.6/108 votes
#14 - Liferafts, Mind Control
Season 9 Episode 14 - Aired 10/4/2012
How can lifeboats hold up to 150 people? How can mind control techniques help golfers improve their shots? How do they make millions of celebratory stamps?
Director: N/A
Writer: N/A
- NaN/100 votes
#15 - Tequila, Steam-Powered Megacity
Season 9 Episode 15 - Aired 10/11/2012
How do they produce tequila from cactus plants in Mexico? How does New York City run on steam? How do they produce soft ice cream?
Director: N/A
Writer: N/A
- 7.5/109 votes
#16 - Stuntmen, Seabreacher, Amber
Season 9 Episode 16 - Aired 10/25/2012
How stuntmen survive a day of being knocked down and beaten up; how they make a watercraft that can swim like a dolphin; how they mine precious amber.
Director: N/A
Writer: N/A
- NaN/100 votes
#17 - Tennis Balls, Surround Sound
Season 9 Episode 17 - Aired 10/25/2012
How is NYC supplied with the finest steaks? How do they produce the ultimate surround sound home cinema systems?
Director: N/A
Writer: N/A
- 7.4/108 votes
#18 - Rayon, Snuff, Cola
Season 9 Episode 18 - Aired 11/29/2012
How is viscose transformed into clothing and cloth? How do they produce the world's favourite fizzy drinks? How do they make traditional English snuff?
Director: N/A
Writer: N/A
- 7.4/108 votes
#19 - Zubrowka, Aerial Cable Car
Season 9 Episode 19 - Aired 12/6/2012
How do they build the world's most expensive cable cars? How is vodka produced from grass? How do social networks connect people around the world?
Director: N/A
Writer: N/A
- 7.8/108 votes
#20 - Skydiving Suits, Surströmming
Season 9 Episode 20 - Aired 12/13/2012
How do skydiving suits work? How do they produce Surströmming, one of the world's smelliest foods? How do they transform weeds into walls?
Director: N/A
Writer: N/A
The Best Episodes of How Do They Do It? Season 9
Every episode of How Do They Do It? Season 9 ranked from best to worst. Discover the Best Episodes of How Do They Do It? Season 9!
An insider's look at the engineering and scientific miracles behind the things that form the modern world.
Genre:Documentary
Network:Discovery
Season 9 Ratings Summary
"Chewing Gum, Fish Hooks, Legoland" is the best rated episode of "How Do They Do It?" season 9. It scored 7.2/10 based on 12 votes. Directed by N/A and written by N/A, it aired on 5/17/2012. This episode is rated 0.2 points higher than the second-best, "Leatherman, Formula 1, Glassware".