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00:00:02,169 --> 00:00:04,169
Narrator: AROUND THE WORLD,
THE RACE TO WIN WARS
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00:00:04,171 --> 00:00:06,238
AND EXPLORE THE UNIVERSE HAS
CREATED SOME OF THE MOST
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00:00:06,240 --> 00:00:07,773
INCREDIBLE PRODUCTS
EVER DESIGNED,
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00:00:07,775 --> 00:00:09,841
AND WE USE THEM EVERY DAY,
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00:00:09,843 --> 00:00:13,312
UNAWARE OF THEIR
AMAZING ORIGINS.
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00:00:13,314 --> 00:00:15,647
INCREDIBLE INVENTIONS.
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00:00:15,649 --> 00:00:19,318
ON INCREDIBLE INVENTIONS:
THE SWISS ARMY KNIFE,
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00:00:19,320 --> 00:00:20,519
AN ENTIRE TOOL-KIT
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00:00:20,521 --> 00:00:23,856
IN A POCKET-SIZED RED PACKAGE.
10
00:00:23,858 --> 00:00:26,458
THE WINGLET, A NASA
DEVELOPED DESIGN
11
00:00:26,460 --> 00:00:28,627
THAT NOW HELPS YOU JET
AROUND THE WORLD.
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00:00:30,731 --> 00:00:32,464
THE ENGLISH SADDLE,
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00:00:32,466 --> 00:00:33,866
WE SADDLE UP AND EXPLAIN
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00:00:33,868 --> 00:00:35,200
HOW A HORSE RIDING ESSENTIAL
15
00:00:35,202 --> 00:00:40,005
CREATED THE SHOCK TROOPS
OF THE MIDDLE AGES.
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00:00:40,007 --> 00:00:42,207
WE REVEAL THE AMAZING HISTORY
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00:00:42,209 --> 00:00:45,744
AND ENGINEERING BEHIND THESE
INCREDIBLE INVENTIONS.
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00:00:45,746 --> 00:00:48,747
-- Captions by VITAC --
www.vitac.com
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00:00:48,749 --> 00:00:51,650
CAPTIONS PAID FOR BY
DISCOVERY COMMUNICATIONS
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00:01:03,697 --> 00:01:06,632
Narrator: THROUGHOUT HISTORY
AN ARMY'S SUCCESS
21
00:01:06,634 --> 00:01:08,834
HAS DEPENDED ON THE QUALITY
OF THEIR GEAR
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00:01:08,836 --> 00:01:10,702
AS MUCH AS THE TACTICS DEPLOYED
23
00:01:10,704 --> 00:01:12,604
IN THE HEAT OF BATTLE.
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00:01:15,576 --> 00:01:17,242
Man: ONE OF THE KEY THINGS
FOR EVERY SOLDIER,
25
00:01:17,244 --> 00:01:18,643
EVERY INFANTRYMAN
WANTS TO BE ABLE
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00:01:18,645 --> 00:01:20,245
TO CARRY ALL HIS KIT WITH HIM.
27
00:01:20,247 --> 00:01:22,314
AND THE LIGHTER IT CAN BE
AND THE MOST FUNCTIONAL IT
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00:01:22,316 --> 00:01:25,184
CAN BE ENHANCES HIS CAPABILITY
ON THE BATTLEFIELD.
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00:01:25,186 --> 00:01:26,919
Narrator:
FROM THE ROMANS OF ANTIQUITY
30
00:01:26,921 --> 00:01:29,655
TO THE MODERN MILITARY COURSES
OF TODAY,
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00:01:29,657 --> 00:01:33,392
MOBILITY AND FLEXIBILITY
ARE THE KEY WORDS TO DESCRIBE
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00:01:33,394 --> 00:01:36,261
THE MOST EFFECTIVE
FIGHTING FORCES IN HISTORY,
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00:01:36,263 --> 00:01:38,931
AND THEIR EQUIPMENT
HAS TO REFLECT THIS.
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00:01:38,933 --> 00:01:41,200
IN FACT YOU MIGHT BE
SURPRISED TO FIND
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00:01:41,202 --> 00:01:42,734
THAT A PRODUCT LIVING
IN A DRAWER
36
00:01:42,736 --> 00:01:44,203
AT HOME WAS DEVELOPED
37
00:01:44,205 --> 00:01:46,138
TO MEET THIS MILITARY NEED.
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00:01:46,140 --> 00:01:51,143
IT'S THE ABSOLUTE DEFINITION
OF MULTI-PURPOSE --
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00:01:51,145 --> 00:01:53,745
THE SWISS ARMY KNIFE.
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00:01:53,747 --> 00:01:56,281
THE IDEA OF INCORPORATING
SEVERAL TOOLS
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00:01:56,283 --> 00:01:59,084
IN A SMALL, PORTABLE UNIT
IS NOT A NEW ONE.
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00:01:59,086 --> 00:02:01,820
THE ROMANS HAD THEIR VERY OWN
VERSION OF A SWISS ARMY KNIFE
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00:02:01,822 --> 00:02:04,956
NEARLY 2,000 YEARS AGO,
COMPLETE WITH SPOON,
44
00:02:04,958 --> 00:02:06,424
FORK, BLADE,
45
00:02:06,426 --> 00:02:09,361
AND THE OBLIGATORY TOOTHPICK.
46
00:02:09,363 --> 00:02:11,964
MADE FROM SOLID SILVER,
THIS LUXURY ITEM
47
00:02:11,966 --> 00:02:13,698
AND THE IDEA FOR A MULTI-TOOL
48
00:02:13,700 --> 00:02:16,101
SEEMS TO HAVE BEEN LOST IN
TIME.
49
00:02:16,103 --> 00:02:19,705
THAT'S BECAUSE FROM THE 1600s
THE BASIC POCKETKNIFE
50
00:02:19,707 --> 00:02:22,574
BECOMES THE HANDY
TOOL OF CHOICE.
51
00:02:22,576 --> 00:02:24,509
THEN, IN THE 1880s,
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00:02:24,511 --> 00:02:26,912
THE SWISS ARMY REPLACES
THEIR OWN POCKETKNIFE,
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00:02:26,914 --> 00:02:29,448
GIVING BIRTH TO
A REVOLUTIONARY NEW PRODUCT.
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00:02:32,319 --> 00:02:35,653
Man: IT WAS DEVELOPED IN ORDER
TO ENABLE THE SOLDIERS
55
00:02:35,655 --> 00:02:38,790
TO DISMANTLE THEIR RIFLE
AND TO CLEAN IT,
56
00:02:38,792 --> 00:02:41,126
AND ALSO TO OPEN
CANNED FOOD.
57
00:02:41,128 --> 00:02:44,129
THEREFORE IT NEEDED
TWO ATTACHMENTS,
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00:02:44,131 --> 00:02:47,332
A TIN OPENER AND A SCREW
DRIVER.
59
00:02:47,334 --> 00:02:51,069
SO THE SOLUTION
WAS THE MODEL 1890
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00:02:51,071 --> 00:02:53,071
WHICH WAS A KNIFE MANUFACTURED
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00:02:53,073 --> 00:02:54,940
BY THE COMPANY VESTA AND CO.
62
00:02:54,942 --> 00:02:56,808
WHICH IS ACTUALLY
A GERMAN COMPANY.
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00:02:56,810 --> 00:03:00,011
Narrator: SO THE ORIGINAL MODEL
1890 SWISS ARMY KNIFE
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00:03:00,013 --> 00:03:02,347
IS ACTUALLY GERMAN.
65
00:03:02,349 --> 00:03:04,950
A YEAR LATER BUSINESSMAN
CARL ELSENER
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00:03:04,952 --> 00:03:08,487
TAKES PRODUCTION OF THE KNIFE
TO THE SWISS TOWN OF IBACH
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00:03:08,489 --> 00:03:10,422
AND STARTS IMPROVING ITS DESIGN
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00:03:10,424 --> 00:03:12,557
AND THE NUMBER OF TOOLS
IT CAN CARRY.
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00:03:12,559 --> 00:03:14,893
Man: CARL ELSENER REFINED
THE DESIGN BY
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00:03:14,895 --> 00:03:17,428
ADDING A CORKSCREW AND
SCISSORS.
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00:03:17,430 --> 00:03:19,231
AND THIS MODEL HE CALLED IT
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00:03:19,233 --> 00:03:21,300
[ SPEAKING GERMAN ]
THE --
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00:03:21,302 --> 00:03:24,569
WHICH ACTUALLY MEANS
"SWISS OFFICER KNIFE."
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00:03:24,571 --> 00:03:26,304
AND AFTER THE SECOND WORLD WAR,
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00:03:26,306 --> 00:03:28,373
THE [ SPEAKING GERMAN ]
76
00:03:28,375 --> 00:03:31,643
WAS ACTUALLY HARD FOR AMERICANS
TO PRONOUNCE.
77
00:03:31,645 --> 00:03:34,713
SO IT WAS DECIDED TO NICKNAME
IT
THE SWISS ARMY KNIFE.
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00:03:34,715 --> 00:03:38,116
Narrator: WITH OVER 800 TOOLS
TO
CHOOSE FROM,
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00:03:38,118 --> 00:03:40,319
THE VICTORINOX FACTORY
IN IBACH PRODUCES
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00:03:40,321 --> 00:03:43,454
350 DIFFERENT VERSIONS
OF THE KNIFE
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00:03:43,456 --> 00:03:45,991
WITH AN EYE-WATERING
17 MILLION KNIFE PARTS
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00:03:45,993 --> 00:03:48,326
BEING MANUFACTURED EVERY YEAR.
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00:03:48,328 --> 00:03:50,996
THE MANUFACTURING
PROCESS STARTS
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00:03:50,998 --> 00:03:53,332
WITH A 3 MILLIMETER THICK
COIL OF HIGH QUALITY
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00:03:53,334 --> 00:03:57,602
STAINLESS STEEL BEING FED
INTO A PUNCHING MACHINE.
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00:03:57,604 --> 00:03:59,404
THE METAL IS FORCED
AGAINST THE DIE
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00:03:59,406 --> 00:04:01,606
TO PUNCH OUT THE BASIC
BLADE SHAPES
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00:04:01,608 --> 00:04:03,741
INCLUDING THE NAIL GROOVE
USED TO OPEN THE KNIFE.
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00:04:03,743 --> 00:04:06,611
A SINGLE COIL CONTAINS
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00:04:06,613 --> 00:04:09,014
ENOUGH STEEL FOR 30,000 BLADES
91
00:04:09,016 --> 00:04:10,815
TO BE PUNCHED IN ONE PASS.
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00:04:10,817 --> 00:04:13,552
THE OTHER TOOLS
SUCH AS THE CAN-OPENER
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00:04:13,554 --> 00:04:15,287
ARE MADE IN THE SAME WAY.
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00:04:15,289 --> 00:04:19,024
THE BLADES ARE THEN
FED INTO A MACHINE
95
00:04:19,026 --> 00:04:21,559
THAT CONTAINS
A VIBRATING MIXTURE OF STONES
96
00:04:21,561 --> 00:04:23,395
AND WATER WHICH
POLISHES THE STEEL.
97
00:04:24,698 --> 00:04:27,165
ONCE POLISHED A POWERFUL
MAGNET REMOVES
98
00:04:27,167 --> 00:04:28,900
THE BLADES FROM THE STONE.
99
00:04:33,373 --> 00:04:35,173
THE BLADES ARE STILL
FAR TOO THICK,
100
00:04:35,175 --> 00:04:38,042
SO THIS MACHINE
GRINDS THEM FLAT TO
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00:04:38,044 --> 00:04:40,779
WITHIN A TOLERANCE OF LESS
THAN THE WIDTH OF A HUMAN HAIR,
102
00:04:40,781 --> 00:04:42,247
TO PREVENT THEM JAMMING
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00:04:42,249 --> 00:04:44,849
WHEN THE KNIFE
IS OPENING AND CLOSING.
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00:04:44,851 --> 00:04:46,985
AT THIS POINT
THE BLADES ARE STAMPED
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00:04:46,987 --> 00:04:49,187
WITH THEIR TRADEMARK
AND THEN ENTER A FURNACE
106
00:04:49,189 --> 00:04:52,257
THAT IS HEATED
TO 2,000 DEGREES FAHRENHEIT.
107
00:04:52,259 --> 00:04:54,659
ONCE HEATED TO THE CORRECT
TEMPERATURE THE BLADES
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00:04:54,661 --> 00:04:58,530
ARE QUICKLY COOLED WHICH
HARDENS
AND TOUGHENS THE METAL FURTHER.
109
00:04:58,532 --> 00:05:01,199
ONCE THE BLADE IS SHARPENED IT
IS READY FOR ASSEMBLY.
110
00:05:01,201 --> 00:05:04,335
THE SHAPE OF THE BLADE INCLUDES
A NOTCH AT THE BACK
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00:05:04,337 --> 00:05:06,271
OF THE KNIFE EDGE
WHICH IS PART OF AN OPENING
112
00:05:06,273 --> 00:05:08,006
AND CLOSING SYSTEM
FOR POCKETKNIVES
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00:05:08,008 --> 00:05:11,743
THAT HAS BEEN IN EXISTENCE
FOR OVER 300 YEARS.
114
00:05:11,745 --> 00:05:13,678
THIS IS CALLED
A SLIP JOINT.
115
00:05:13,680 --> 00:05:18,016
Man: SLIP JOINT KNIVES
HAVE AN INTERNAL SPRING
116
00:05:18,018 --> 00:05:20,619
WHICH IS MORE LIKE
A SMALL PIECE OF METAL
117
00:05:20,621 --> 00:05:23,488
AND THIS SPRING NEEDS
TO BE OVERCOME IN ORDER
118
00:05:23,490 --> 00:05:26,558
TO CLOSE AND OPEN THE KNIFE.
119
00:05:26,560 --> 00:05:28,226
Narrator: THE FLAGSHIP
VICTORINOX KNIFE
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00:05:28,228 --> 00:05:29,961
IS THE SWISS CHAMP
121
00:05:29,963 --> 00:05:33,231
WITH AN AMAZING NUMBER OF
DIFFERENT TOOLS.
122
00:05:33,233 --> 00:05:36,301
THIS HAND-ASSEMBLED MULTI-TOOL
WONDER STARTS LIFE
123
00:05:36,303 --> 00:05:38,437
WITH FOUR PINS
THAT ALL THE PARTS
124
00:05:38,439 --> 00:05:41,773
WILL SLOT ONTO TO CREATE
ONE BIG METAL SANDWICH.
125
00:05:41,775 --> 00:05:45,177
A MIXTURE OF TOOLS, SPACERS,
SPRINGS AND ATTACHMENTS
126
00:05:45,179 --> 00:05:47,045
ARE BUILT UP
TO FORM THE CHAMP,
127
00:05:47,047 --> 00:05:49,448
WITH METAL FITTINGS
CALLED BUSHINGS MACHINED
128
00:05:49,450 --> 00:05:51,350
ONTO THE PINS
TO FIX THE TOOL TOGETHER.
129
00:05:55,456 --> 00:05:58,189
THE BLADE IS THEN
GIVEN A FINAL FINISH.
130
00:05:58,191 --> 00:06:00,325
THE DISTINCTIVE
RED PLASTIC HANDLES
131
00:06:00,327 --> 00:06:02,994
OF THE SWISS ARMY
KNIFE ARE CALLED SCALES.
132
00:06:02,996 --> 00:06:06,064
THESE ARE MADE IN THE FACTORY'S
INJECTION MOLDING DEPARTMENT
133
00:06:06,066 --> 00:06:08,266
AND ARE EMBLAZONED
WITH THE VICTORINOX SHIELD,
134
00:06:08,268 --> 00:06:10,135
READY TO BE ATTACHED
TO THE FINISHED TOOL.
135
00:06:12,473 --> 00:06:15,540
TWO SCALES ARE PLACED
INTO A MACHINE
136
00:06:15,542 --> 00:06:18,076
AND THE TOOL BUNDLE
IS POSITIONED BETWEEN THEM,
137
00:06:18,078 --> 00:06:21,345
AND THE SCALES ARE PUSHED DOWN
TO FIX THEM TO THE BUSHINGS.
138
00:06:21,347 --> 00:06:23,815
THE ONE INCH WIDE TOOL
IS NOW FINISHED --
139
00:06:23,817 --> 00:06:26,150
BUT ALL 33 OF ITS ATTACHMENTS
140
00:06:26,152 --> 00:06:28,553
STILL NEED TO BE CHECKED
BEFORE IT CAN BE SENT OUT
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00:06:28,555 --> 00:06:31,256
TO OVER 120 COUNTRIES
AROUND THE WORLD.
142
00:06:33,760 --> 00:06:36,160
WHICH INCREDIBLE INVENTION
ALLOWS US
143
00:06:36,162 --> 00:06:38,096
TO JET AROUND THE WORLD SAFELY
144
00:06:38,098 --> 00:06:40,298
AND WITH LESS DAMAGE
TO THE ENVIRONMENT?
145
00:06:40,300 --> 00:06:41,767
FIND OUT AFTER THE BREAK.
146
00:06:51,645 --> 00:06:53,245
Narrator:
WHETHER IT'S JETTING OFF
147
00:06:53,247 --> 00:06:55,112
FOR A MUCH DESERVED VACATION,
148
00:06:55,114 --> 00:06:57,449
OR TRAVELING FOR BUSINESS,
AIR TRAVEL
149
00:06:57,451 --> 00:07:01,186
HAS BECOME A FAMILIAR PART
OF EVERY DAY LIFE.
150
00:07:01,188 --> 00:07:03,921
WE ASSUME THE AIRCRAFT
WILL PROPEL INTO THE SKY,
151
00:07:03,923 --> 00:07:07,258
BUT HOW MANY OF US ACTUALLY
UNDERSTAND THE SCIENCE
152
00:07:07,260 --> 00:07:08,660
BEHIND WHAT KEEPS IT UP THERE?
153
00:07:10,264 --> 00:07:13,465
IT'S THE WINGS OF COURSE --
BUT HOW DO THEY WORK,
154
00:07:13,467 --> 00:07:15,934
AND HAVE YOU EVER WONDERED
WHAT THOSE VERTICAL WING TIPS
155
00:07:15,936 --> 00:07:18,003
ON AIRLINERS ACTUALLY DO?
156
00:07:18,005 --> 00:07:21,606
AND DID YOU KNOW
THEY'RE CONNECTED TO NASA?
157
00:07:21,608 --> 00:07:23,875
THE ANSWERS ALL LIE
WITH UNDERSTANDING
158
00:07:23,877 --> 00:07:28,280
JUST HOW AN AIRCRAFT
WING ACTUALLY WORKS.
159
00:07:28,282 --> 00:07:31,349
WITH WINGS YOU NORMALLY
HAVE A CURVED SURFACE
160
00:07:31,351 --> 00:07:32,617
WHICH MEANS THE AIR
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00:07:32,619 --> 00:07:34,352
THAT'S GOING OVER
ON A NORMAL PLANE'S
162
00:07:34,354 --> 00:07:35,954
TOP SURFACE OF THE WING
HAS FURTHER
163
00:07:35,956 --> 00:07:38,089
TO GO THAN THE AIR
THAT'S ON THE LOWER SURFACE.
164
00:07:38,091 --> 00:07:40,358
IF THE AIR ON THE TOP SURFACE
HAS GOTTA GO FURTHER
165
00:07:40,360 --> 00:07:41,893
THAN THE AIR
ON THE LOWER SURFACE
166
00:07:41,895 --> 00:07:43,695
THEN IT'S GONNA TRAVEL FASTER
167
00:07:43,697 --> 00:07:45,230
AND THAT GENERATES EFFECTIVELY
168
00:07:45,232 --> 00:07:46,898
A LOW PRESSURE
ON THE TOP SURFACE
169
00:07:46,900 --> 00:07:49,768
AND HIGH PRESSURE
ON THE LOWER SURFACE.
170
00:07:49,770 --> 00:07:51,969
AND IT'S ESSENTIALLY
THE PRESSURE DIFFERENCE
171
00:07:51,971 --> 00:07:54,039
THAT GENERATES
A VERTICAL FORCE.
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00:07:54,041 --> 00:07:56,441
SO THE BIGGER THE WING
THE BIGGER THE FORCE.
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00:07:56,443 --> 00:07:58,510
Narrator: THIS AMAZING
AERODYNAMIC PRINCIPLE
174
00:07:58,512 --> 00:08:00,312
HAS BEEN THE SECRET
TO POWERED FLIGHT
175
00:08:00,314 --> 00:08:02,948
EVER SINCE THE WRIGHT BROTHERS
FIRST FLEW IN 1903.
176
00:08:05,252 --> 00:08:07,252
THOUGH THE DIFFERENCE
IN AIR PRESSURES
177
00:08:07,254 --> 00:08:10,855
AROUND A WING ALSO GENERATE
LESS FAVORABLE CHARACTERISTICS,
178
00:08:10,857 --> 00:08:13,391
NAMELY WING TIP VORTICES.
179
00:08:13,393 --> 00:08:15,260
A WING TIP VORTEX IS CREATED
180
00:08:15,262 --> 00:08:16,928
AS HIGH PRESSURE AIR LEAKS
181
00:08:16,930 --> 00:08:19,063
FROM BELOW THE SURFACE
OF THE WING TIP.
182
00:08:19,065 --> 00:08:21,399
THIS HIGH PRESSURE AIR SPILLS
OVER THE TOP
183
00:08:21,401 --> 00:08:24,202
AND INTO LOW PRESSURE
SPACE ABOVE THE WING.
184
00:08:24,204 --> 00:08:26,871
THIS BEHAVIOR CREATES
A PATH OF SWIRLING AIR
185
00:08:26,873 --> 00:08:29,274
THAT TRAILS EACH WING
TIP WITH ITS STRENGTH
186
00:08:29,276 --> 00:08:31,742
AND SIZE DETERMINED
BY MANY FACTORS,
187
00:08:31,744 --> 00:08:34,946
INCLUDING THE AIRCRAFT'S
WEIGHT AND AIRSPEED.
188
00:08:34,948 --> 00:08:37,815
Man: ON A LARGE PLANE YOU MIGHT
SEE REALLY BIG VORTICES
189
00:08:37,817 --> 00:08:39,150
COMING OFF THE WING TIPS
190
00:08:39,152 --> 00:08:42,019
AND GETTING SHED OFF DOWN,
191
00:08:42,021 --> 00:08:46,491
MAYBE STICKING IN THE AIR
FOR A COUPLE OF MILES OR SO.
192
00:08:46,493 --> 00:08:47,893
AND IT ALSO DETRACTS
193
00:08:47,895 --> 00:08:51,029
FROM THE EFFICIENCY
OF THE AIRCRAFT.
194
00:08:51,031 --> 00:08:53,098
YOU CAN GET ADDITIONAL DRAG
195
00:08:53,100 --> 00:08:55,700
FROM THE FORMATION
OF VORTICES AND THE MESS,
196
00:08:55,702 --> 00:08:58,503
THE LOSSES THAT
COME ASSOCIATED WITH THAT.
197
00:08:58,505 --> 00:09:00,972
Narrator: DRAG IS NOT THE ONLY
NEGATIVE ASPECT
198
00:09:00,974 --> 00:09:02,173
OF WING TIP VORTICES.
199
00:09:02,175 --> 00:09:04,309
VORTICES ARE ALSO
A COMPONENT PART
200
00:09:04,311 --> 00:09:07,045
OF WEIGHT TURBULENCE,
WHICH IS THE DISTURBED AIR
201
00:09:07,047 --> 00:09:09,981
THAT FORMS BEHIND
AN AIRCRAFT AS IT MOVES.
202
00:09:09,983 --> 00:09:12,851
THIS TURBULENCE CAN POTENTIALLY
BE A DANGEROUS HAZARD
203
00:09:12,853 --> 00:09:15,587
FOR ANY FOLLOWING AIRCRAFT.
204
00:09:15,589 --> 00:09:17,655
Man:
IF YOU IMAGINE THE DIFFERENCE
205
00:09:17,657 --> 00:09:19,657
BETWEEN FLYING INTO AIR
206
00:09:19,659 --> 00:09:21,993
WHICH IS UNIFORMLY
COMING TOWARDS YOU
207
00:09:21,995 --> 00:09:25,997
AND THEN YOU IMAGINE
FLYING THROUGH A VORTEX
208
00:09:25,999 --> 00:09:27,465
WHICH IS EFFECTIVELY SPINNING.
209
00:09:29,268 --> 00:09:31,269
DEPENDING ON THE SIZE
OF VEHICLE THAT
210
00:09:31,271 --> 00:09:32,670
YOU'RE IN AND THE POSITION
211
00:09:32,672 --> 00:09:34,873
OF THE VEHICLE COMPARED
TO THOSE VORTICES,
212
00:09:34,875 --> 00:09:38,076
THEY CAN HAVE THE POWER
TO FLIP AIRCRAFT OVER.
213
00:09:38,078 --> 00:09:39,944
IF YOU'RE COMING TO LAND
A SMALL PLANE
214
00:09:39,946 --> 00:09:42,080
ON THE SAME RUNWAY,
FOR EXAMPLE,
215
00:09:42,082 --> 00:09:46,484
WHERE A LARGE PLANE HAS EITHER
JUST TAKEN OFF OR JUST LANDED.
216
00:09:46,486 --> 00:09:48,953
THEN THAT CAN BE
PRETTY DANGEROUS.
217
00:09:48,955 --> 00:09:51,555
Narrator:
DANGEROUS TURBULENCE? DRAG?
218
00:09:51,557 --> 00:09:55,627
NOW, THIS IS WHERE NASA
AND THE WINGLETS COME IN.
219
00:09:55,629 --> 00:09:57,428
THE WINGLET IS NOT
A NEW CONCEPT,
220
00:09:57,430 --> 00:10:01,232
WITH THE EARLIEST EXAMPLE
DATING BACK TO 1910.
221
00:10:01,234 --> 00:10:04,369
IN ITS MOST BASIC FORM
A WINGLET IS AN ANGLED
EXTENSION
222
00:10:04,371 --> 00:10:08,106
OF A WING TIP THAT SITS
AT 90 DEGREES TO THE WING.
223
00:10:08,108 --> 00:10:10,375
TRADITIONALLY
THIS EXTENSION SUNK
224
00:10:10,377 --> 00:10:12,377
BELOW THE WING
SUCH AS THE EXAMPLE
225
00:10:12,379 --> 00:10:14,712
ON THIS GERMAN HEINKEL 162A
226
00:10:14,714 --> 00:10:16,180
FROM WORLD WAR II.
227
00:10:16,182 --> 00:10:19,583
SO WHAT ARE THESE DESIGNS
TRYING TO ACHIEVE?
228
00:10:19,585 --> 00:10:21,986
Man:
THE IDEA BEHIND A WINGLET
229
00:10:21,988 --> 00:10:25,123
IS EFFECTIVELY TO PROVIDE
A BOUNDARY FOR THE FLOW
230
00:10:25,125 --> 00:10:29,527
WHICH IS ATTEMPTING TO WRAP
FROM THE PRESSURE SURFACE
231
00:10:29,529 --> 00:10:32,597
OF A WING ONTO THE SUCTION
SURFACE OF THE WING.
232
00:10:32,599 --> 00:10:37,201
SO YOU'RE TRYING TO REDUCE
THE EFFECT OF THIS TIP VORTEX.
233
00:10:37,203 --> 00:10:39,937
Narrator: THE DESIGN
AND PLACEMENT OF WINGLETS
234
00:10:39,939 --> 00:10:42,006
ARE CRITICAL
TO THEIR PERFORMANCE.
235
00:10:42,008 --> 00:10:44,676
IN RESPONSE
TO THE OIL CRISIS OF 1973,
236
00:10:44,678 --> 00:10:47,812
WHICH SAW AN INCREDIBLE RISE
IN THE COST OF FUEL,
237
00:10:47,814 --> 00:10:49,681
NASA ENGINEER
RICHARD T. WHITCOMB
238
00:10:49,683 --> 00:10:52,083
DEVELOPED THE NEAR VERTICAL
WINGLET DESIGN
239
00:10:52,085 --> 00:10:54,485
WE ARE
SO FAMILIAR WITH TODAY.
240
00:10:54,487 --> 00:10:58,155
THROUGHOUT TIME AERODYNAMICISTS
OBSERVED HOW SOARING BIRDS
241
00:10:58,157 --> 00:11:02,761
IN FLIGHT SUCH EAGLES GLIDED
WITH NEAR VERTICAL WING TIPS.
242
00:11:02,763 --> 00:11:04,562
IF IT WAS GOOD ENOUGH
FOR THE BIRDS,
243
00:11:04,564 --> 00:11:06,431
THEN IT WAS GOOD
ENOUGH FOR NASA.
244
00:11:06,433 --> 00:11:09,233
WHITCOMB CAME UP WITH
SMALL VERTICAL AIR FOILS
245
00:11:09,235 --> 00:11:11,969
AND BY 1976 HIS RESEARCH SHOWS
246
00:11:11,971 --> 00:11:14,906
THAT WINGLETS EMPLOYED
ON TRANSPORT SIZED AIRCRAFT
247
00:11:14,908 --> 00:11:19,310
CAN DIMINISH INDUCED DRAG
BY APPROXIMATELY 20 PERCENT
248
00:11:19,312 --> 00:11:22,580
AND IMPROVE THE OVERALL LIFT
TO DRAG RATIO
249
00:11:22,582 --> 00:11:24,782
BY 6 TO 9 PERCENT.
250
00:11:24,784 --> 00:11:27,318
TWENTY YEARS LATER,
THE COMMERCIAL AIRLINE INDUSTRY
251
00:11:27,320 --> 00:11:29,120
STARTS TO SEE
THE BENEFITS OF ADDING
252
00:11:29,122 --> 00:11:32,056
A BLENDED WINGLET TO THEIR
OWN FLEET'S WINGS.
253
00:11:32,058 --> 00:11:33,858
THERE ARE NOW A WIDE VARIETY
254
00:11:33,860 --> 00:11:35,926
OF WINGLET DESIGNS
AND MANUFACTURERS
255
00:11:35,928 --> 00:11:37,928
AND IT HAS BEEN
CALCULATED THAT PLANES
256
00:11:37,930 --> 00:11:40,598
WITH WINGLET DESIGNS
CAN SEE FUEL SAVINGS OF BETWEEN
257
00:11:40,600 --> 00:11:43,201
4 TO 6 PERCENT.
WHAT DOES THAT MEAN?
258
00:11:43,203 --> 00:11:46,003
WELL, IT'S BEEN CALCULATED
BY ONE MANUFACTURER
259
00:11:46,005 --> 00:11:47,405
THAT THEIR BLENDED WINGS
260
00:11:47,407 --> 00:11:50,207
HAVE SAVED OVER
5 BILLION GALLONS OF FUEL
261
00:11:50,209 --> 00:11:53,144
SINCE THEIR INTRODUCTION
15 YEARS AGO.
262
00:11:53,146 --> 00:11:56,147
AS A RESULT BILLIONS OF DOLLARS
HAVE BEEN SAVED
263
00:11:56,149 --> 00:11:58,950
AND TENS OF MILLIONS
OF TONS LESS CARBON DIOXIDE
264
00:11:58,952 --> 00:12:01,886
HAVE BEEN EMITTED
INTO THE ATMOSPHERE.
265
00:12:01,888 --> 00:12:04,756
THE WINGLET, TRULY
AN INCREDIBLE INVENTION.
266
00:12:07,027 --> 00:12:09,494
COMING UP NEXT,
"INCREDIBLE INVENTIONS"
267
00:12:09,496 --> 00:12:12,296
TAKES A LOOK AT
A SHOCK-ABSORBING MARVEL --
268
00:12:12,298 --> 00:12:14,565
BUT FIRST AN EXPERIMENT TO
PROVE
269
00:12:14,567 --> 00:12:16,301
JUST HOW EFFECTIVE WINGLETS
ARE.
270
00:12:27,180 --> 00:12:30,648
Narrator:
THE INVENTION OF THE WINGLET
271
00:12:30,650 --> 00:12:32,116
IS SAID TO BE SAVING AIRLINES
272
00:12:32,118 --> 00:12:33,451
A GREAT DEAL OF MONEY,
273
00:12:33,453 --> 00:12:35,253
BUT IT'S TIME
WE TEST THE BENEFITS
274
00:12:35,255 --> 00:12:37,522
OF THIS COOL INNOVATION
FOR OURSELVES.
275
00:12:37,524 --> 00:12:39,924
WE'VE COME TO
"INCREDIBLE INVENTIONS"
AIRFIELD
276
00:12:39,926 --> 00:12:41,459
TO FIND OUT.
277
00:12:41,461 --> 00:12:44,195
THE EXPERIMENT BELOVED
BY BORED SCHOOL BOYS
278
00:12:44,197 --> 00:12:45,930
AND FRUSTRATED FLYERS
EVERYWHERE,
279
00:12:45,932 --> 00:12:49,467
THE PAPER PLANE IS THE CLASSIC
LOW COST ENTRY INTO
280
00:12:49,469 --> 00:12:51,803
THE WORLD
OF AVIATION.
281
00:12:51,805 --> 00:12:55,406
TO BEGIN, WE CREATE
FIVE IDENTICAL PAPER PLANES.
282
00:12:55,408 --> 00:12:57,141
EACH FLYER IS MADE
FROM A STANDARD
283
00:12:57,143 --> 00:12:58,342
PIECE OF RED PAPER
284
00:12:58,344 --> 00:13:00,078
USING THE BASIC
FOLDING TECHNIQUE
285
00:13:00,080 --> 00:13:04,482
REFINED OVER MANY GENERATIONS
OF CLASSROOM CHAOS.
286
00:13:04,484 --> 00:13:08,219
NOW, FOR THE WINGLET PLANES,
USING GREEN PAPER THIS TIME --
287
00:13:08,221 --> 00:13:10,421
WELL, THIS IS FUEL
SAVING TECHNOLOGY --
288
00:13:10,423 --> 00:13:13,558
FIVE OTHER IDENTICAL
PAPER PLANES ARE MADE.
289
00:13:13,560 --> 00:13:14,826
THE WINGLETS ARE CREATED
290
00:13:14,828 --> 00:13:17,829
BY FOLDING THE WINGS
IN ON THEMSELVES.
291
00:13:17,831 --> 00:13:20,231
THIS CREATES A HALF-INCH LONG
WINGLET
292
00:13:20,233 --> 00:13:22,299
THAT SHOULD REDUCE
THE AIRCRAFT'S DRAG
293
00:13:22,301 --> 00:13:26,437
AND STABILIZE IT IN FLIGHT --
OR, SO THE THEORY GOES.
294
00:13:26,439 --> 00:13:28,439
ONE FLIGHT AREA
IS LAID OUT WITH MARKINGS
295
00:13:28,441 --> 00:13:30,842
PLACED EVERY TEN FEET.
296
00:13:30,844 --> 00:13:33,111
NOW THE TEST CAN BEGIN.
297
00:13:33,113 --> 00:13:35,246
EACH PLAIN WILL BE
RELEASED 5 TIMES
298
00:13:35,248 --> 00:13:36,848
TO REDUCE ANY INCONSISTENCIES
299
00:13:36,850 --> 00:13:39,650
THAT MAY OCCUR
DURING EACH FLIGHT.
300
00:13:39,652 --> 00:13:41,786
A CONSISTENT RELEASE
IS CRITICAL
301
00:13:41,788 --> 00:13:44,588
AND OUR TESTER EXHIBITS
THE PERFECT TECHNIQUE.
302
00:13:44,590 --> 00:13:47,592
A WIDE STANCE,
SHOULDERS BACK,
303
00:13:47,594 --> 00:13:52,263
PERFECT ARM BENDING ACTION.
304
00:13:52,265 --> 00:13:54,599
THE PLANES ARE RELEASED
AND WE SOON GET TO SEE
305
00:13:54,601 --> 00:13:56,066
HOW THE WINGLET
ADAPTED PLANES
306
00:13:56,068 --> 00:13:58,169
PERFORM AGAINST THEIR
STANDARDIZED COUSINS.
307
00:14:01,541 --> 00:14:04,275
AFTER A HECTIC BARRAGE OF
PAPER PROJECTILES
308
00:14:04,277 --> 00:14:06,144
THE RESULTS ARE IN.
309
00:14:06,146 --> 00:14:07,478
IN THIS SHOT WE HAVE PLOTTED
310
00:14:07,480 --> 00:14:09,747
WHERE EACH OF
THE RED PLANES LANDED.
311
00:14:09,749 --> 00:14:11,416
IF WE OVERLAY THE GREEN FLIGHTS
312
00:14:11,418 --> 00:14:13,817
I THINK WE CAN
SEE A CLEAR WINNER.
313
00:14:13,819 --> 00:14:17,155
THE WINGLETS ARE VICTORIOUS --
WITH ONE GREEN PLANE
314
00:14:17,157 --> 00:14:19,624
ACTUALLY ACHIEVING
THE LONGEST FLIGHT DISTANCE,
315
00:14:19,626 --> 00:14:21,692
A REMARKABLE 40 FEET.
316
00:14:21,694 --> 00:14:23,895
SO THERE YOU HAVE IT,
POINT PROVED --
317
00:14:23,897 --> 00:14:27,165
THE WINGLET REALLY IS
AN AERODYNAMIC WONDER.
318
00:14:31,037 --> 00:14:34,572
TODAY'S SADDLE ORIGINATES
IN MILITARY HISTORY.
319
00:14:34,574 --> 00:14:37,108
THE FIRST DEPICTIONS
OF A SADDLE SHOW
320
00:14:37,110 --> 00:14:40,378
THE ASSYRIAN CAVALRY
FROM 700 B.C.
321
00:14:40,380 --> 00:14:41,779
IN THESE EARLY CARVINGS
322
00:14:41,781 --> 00:14:43,648
WE CAN SEE WARRIORS
RIDING HORSES
323
00:14:43,650 --> 00:14:45,917
SEATED UPON A PIECE
OF CLOTH OR LEATHER,
324
00:14:45,919 --> 00:14:48,453
SECURED BY STRAPS
NOT TOO DISSIMILAR
325
00:14:48,455 --> 00:14:50,655
TO THE HORSE TACK OF TODAY.
326
00:14:50,657 --> 00:14:53,457
BUT IT IS THE INTRODUCTION
OF STIRRUPS
327
00:14:53,459 --> 00:14:56,861
TO THE SADDLE THAT CAUSES
A MILITARY REVOLUTION.
328
00:14:56,863 --> 00:14:59,797
A MOUNTED WARRIOR SITTING A TOP
A SADDLE WITH STIRRUPS
329
00:14:59,799 --> 00:15:03,200
NOW GAINS ALL KINDS
ADVANTAGES IN COMBAT.
330
00:15:03,202 --> 00:15:04,802
HAVING THE STIRRUPS ADDED
TO THE SADDLE
331
00:15:04,804 --> 00:15:06,337
JUST CHANGES COMPLETELY THE WAY
332
00:15:06,339 --> 00:15:08,072
YOU CAN FIGHT
ON THE BACK OF A HORSE.
333
00:15:08,074 --> 00:15:10,341
YOU CAN STAND UP,
YOU HAVE A PLATFORM IF YOU
LIKE.
334
00:15:10,343 --> 00:15:11,609
SO SAY YOU HAVE A SWORD
IN YOUR HAND,
335
00:15:11,611 --> 00:15:13,745
FOOT SOLDIERS
COMING CHARGING TOWARDS YOU,
336
00:15:13,747 --> 00:15:15,613
YOU CAN STAND UP IN YOUR HORSE
YOU CAN REACH OUT
337
00:15:15,615 --> 00:15:17,548
AND YOU CAN REALLY GO
FOR THAT FOOT SOLDIER
338
00:15:17,550 --> 00:15:20,351
WITHOUT SLIPPING AND FALLING
OFF
THE SIDE OF THE HORSE.
339
00:15:20,353 --> 00:15:22,419
Narrator: BUT WHAT MAKES
THE MODERN SADDLE
340
00:15:22,421 --> 00:15:23,888
EVEN MORE SPECIAL?
WE FIND OUT
341
00:15:23,890 --> 00:15:26,791
AND SEE HOW IT'S MADE
WHEN WE RETURN.
342
00:15:38,905 --> 00:15:41,906
Narrator: NOMADIC GROUPS SUCH
AS
THE SARMATIANS AND MONGOLS
343
00:15:41,908 --> 00:15:44,809
CONQUERED LARGE SWATHES
OF TERRITORY ON HORSEBACK.
344
00:15:46,446 --> 00:15:48,445
THEN, WHEN THE STIRRUP
IS INTRODUCED
345
00:15:48,447 --> 00:15:51,115
TO A NEW EUROPEAN WARRIOR
CLASS,
346
00:15:51,117 --> 00:15:53,518
AN ULTIMATE FIGHTING
MACHINE ARISES,
347
00:15:53,520 --> 00:15:55,186
THE MOUNTED KNIGHT.
348
00:15:55,188 --> 00:15:56,721
WE THINK OF KNIGHTS,
ARMORED KNIGHTS,
349
00:15:56,723 --> 00:15:58,589
WE CAN THINK OF THE NORMAN
TIME,
350
00:15:58,591 --> 00:16:00,458
THE NORMAN INVASION
11TH CENTURY,
351
00:16:00,460 --> 00:16:02,326
THAT KIND OF PERIOD.
352
00:16:02,328 --> 00:16:03,728
ON THE SPEED OF THEIR HORSE
353
00:16:03,730 --> 00:16:05,863
AND THEIR LANCE
COUCHED UNDER THEIR ARM
354
00:16:05,865 --> 00:16:07,331
THE STABILITY OF THE SADDLE
355
00:16:07,333 --> 00:16:09,600
AND THE STIRRUPS MEANT
THAT ALL THAT POWER
356
00:16:09,602 --> 00:16:11,869
IS TRANSFERRED DOWN
THE END OF THAT POINT.
357
00:16:11,871 --> 00:16:13,604
THEY WOULD DRIVE THROUGH,
358
00:16:13,606 --> 00:16:16,407
PUNCH HOLES THROUGH
THE ENEMY LINES,
359
00:16:16,409 --> 00:16:18,943
A LITTLE BIT LIKE
THE MODERN-DAY TANK.
360
00:16:18,945 --> 00:16:22,680
Narrator: NEARLY 3,000 YEARS
AFTER THEIR INTRODUCTION
SADDLES
361
00:16:22,682 --> 00:16:25,483
ARE STILL BEING MADE
ALL OVER THE WORLD.
362
00:16:25,485 --> 00:16:28,086
IN WALSALL, ENGLAND,
THE SADDLE COMPANY
363
00:16:28,088 --> 00:16:30,321
CONTINUES THE ANCIENT
ART OF SADDLE MAKING.
364
00:16:33,493 --> 00:16:34,759
AS A MASTER SADDLER
365
00:16:34,761 --> 00:16:38,029
WITH 48 YEARS EXPERIENCE
DAVID JOHNSON'S SADDLES
366
00:16:38,031 --> 00:16:40,865
ARE MADE BY COMBINING
TRADITIONAL CRAFTSMANSHIP
367
00:16:40,867 --> 00:16:43,434
WITH MODERN TECHNIQUES
AND MATERIALS TO IMPROVE
368
00:16:43,436 --> 00:16:46,904
THE PERFORMANCE
OF A SADDLE TODAY.
369
00:16:46,906 --> 00:16:49,173
SADDLES ARE MADE
FOR BOTH THE HORSE
370
00:16:49,175 --> 00:16:52,176
AND THE RIDER IN TERMS
OF COMFORT AND DURABILITY.
371
00:16:52,178 --> 00:16:55,580
LIKE US HORSES
COME IN ALL SHAPES AND SIZES,
372
00:16:55,582 --> 00:16:57,648
AND EVERY SADDLE NEEDS
TO BE TAILORED
373
00:16:57,650 --> 00:16:59,784
TO COMFORTABLY
FIT EACH INDIVIDUAL HORSE.
374
00:16:59,786 --> 00:17:03,187
FOR THIS SADDLE THE FRAME,
KNOWN AS THE TREE,
375
00:17:03,189 --> 00:17:05,189
IS MADE FROM POLYURETHANE.
376
00:17:05,191 --> 00:17:06,524
THE FLEXIBLE METAL STRIP
377
00:17:06,526 --> 00:17:08,926
CALLED A GULLET PLATE
IS ATTACHED TO THE TREE.
378
00:17:08,928 --> 00:17:11,995
THIS PLATE CAN BE ADJUSTED
TO CREATE A TAILORED FIT
379
00:17:11,997 --> 00:17:14,999
FOR THE HORSE
ONCE THE SADDLE IS FINISHED.
380
00:17:15,001 --> 00:17:17,802
NEXT THEY RIVET A STIRRUP BAR
THROUGH THE TREE
381
00:17:17,804 --> 00:17:21,806
WHICH WILL BE USED TO ATTACH
THE STIRRUPS TO THE SADDLE.
382
00:17:21,808 --> 00:17:24,275
AN ADHESIVE IS BRUSHED
ON TO THE TREE
383
00:17:24,277 --> 00:17:29,013
AND A FOAM PAD
IS GLUED INTO POSITION.
384
00:17:29,015 --> 00:17:33,017
ANOTHER THICKER FOAM PAD
IS ADDED FOR CUSHIONING.
385
00:17:33,019 --> 00:17:37,087
A KNIFE IS USED
TO TRIM THE FOAM,
386
00:17:37,089 --> 00:17:39,757
A TEMPLATE IS THEN USED
TO TRACE THE SEAT SHAPE
387
00:17:39,759 --> 00:17:43,294
AND THE FOAM IS ROUGHLY
CUT INTO SHAPE.
388
00:17:43,296 --> 00:17:46,830
A TOOL CALLED A RASP
GRAZES AWAY EXCESS FOAM
389
00:17:46,832 --> 00:17:50,234
AND GIVES THE SEAT
A DEFINED SIZE AND SHAPE.
390
00:17:50,236 --> 00:17:52,636
WHILE THE SADDLE SEAT
IS BEING SHAPED,
391
00:17:52,638 --> 00:17:55,639
ANOTHER WORKER STARTS TO CUT
OUT
THE LEATHER PIECES
392
00:17:55,641 --> 00:17:58,776
THAT WILL MAKE UP THE SADDLE
FLAPS AND COVER THE TREE.
393
00:17:58,778 --> 00:18:02,647
FIRST HE INSPECTS THE LEATHER
FOR ANY DEFECTS.
394
00:18:02,649 --> 00:18:04,715
HE CAREFULLY TRACES
THE DIFFERENT PIECES
395
00:18:04,717 --> 00:18:06,551
THAT MAKE UP
THE SADDLE WITH CHALK.
396
00:18:08,587 --> 00:18:11,522
THE LEATHER PIECES ARE THEN FED
INTO A SKIVING MACHINE,
397
00:18:11,524 --> 00:18:14,391
THIS MACHINE SHAVES
THE EDGES OF THE LEATHER.
398
00:18:14,393 --> 00:18:17,061
THESE EDGES, NOW THINNER,
WILL BE EASIER
399
00:18:17,063 --> 00:18:19,396
TO STITCH LATER
ON IN THE PROCESS.
400
00:18:19,398 --> 00:18:21,131
A GLUE IS APPLIED
TO THE CUT PIECES
401
00:18:21,133 --> 00:18:23,267
TO HOLD THEM TOGETHER
BEFORE A MACHINIST
402
00:18:23,269 --> 00:18:26,137
WILL PERMANENTLY
STITCH THEM INTO PLACE.
403
00:18:26,139 --> 00:18:27,738
THE TWO PIECES
ARE PUSHED TOGETHER
404
00:18:27,740 --> 00:18:30,607
WITH THE AID OF A TOOL
MADE FROM WHALE BONE,
405
00:18:30,609 --> 00:18:32,276
THIS MATERIAL IS USED
406
00:18:32,278 --> 00:18:36,814
BECAUSE IT DOES NOT SCRATCH
OR SCAR THE LEATHER.
407
00:18:36,816 --> 00:18:39,817
A MACHINIST THEN STITCHES
THE PIECES OF LEATHER TOGETHER.
408
00:18:39,819 --> 00:18:43,821
WITH THE LEATHER PIECES
PREPARED AND MACHINED
409
00:18:43,823 --> 00:18:46,223
A SADDLE MAKER STARTS
TO CONSTRUCT THE SADDLE.
410
00:18:46,225 --> 00:18:48,426
TO BEGIN THE WORKER STUFFS
THE PANEL
411
00:18:48,428 --> 00:18:51,028
WITH A MIXTURE OF WOOL
AND SYNTHETIC MATERIALS.
412
00:18:51,030 --> 00:18:54,364
TWO PANELS WILL BE ATTACHED
TO THE UNDERSIDE OF THE SADDLE.
413
00:18:54,366 --> 00:18:56,968
THE PANELS ARE DESIGNED
FOR THE HORSE'S COMFORT
414
00:18:56,970 --> 00:19:00,037
WITH ONE SITTING
ON EACH SIDE OF ITS BACK.
415
00:19:00,039 --> 00:19:03,307
NEXT, THE LEATHER SEAT COVER
IS ATTACHED TO THE TREE.
416
00:19:03,309 --> 00:19:05,910
THE COVER IS PULLED
OVER THE TREE
417
00:19:05,912 --> 00:19:07,979
AND FIXED IN PLACE WITH
STAPLES.
418
00:19:07,981 --> 00:19:10,447
AN EXPERIENCED EYE
IS ALL-IMPORTANT
419
00:19:10,449 --> 00:19:12,049
AS THE SADDLE MAKER TRIMS
420
00:19:12,051 --> 00:19:15,453
AWAY EXCESS LEATHER AND SHAPES
THE COVER INTO POSITION.
421
00:19:15,455 --> 00:19:17,922
WITH THE SEAT FIRMLY IN
POSITION
ON THE TREE,
422
00:19:17,924 --> 00:19:21,459
THE FLAPS, PANEL, STRAPS,
AND VARIOUS FIXINGS AND BUCKLES
423
00:19:21,461 --> 00:19:24,662
ARE BROUGHT TOGETHER
AND STAPLED INTO POSITION.
424
00:19:24,664 --> 00:19:27,598
THE PANEL IS THE LAST PIECE
TO BE ATTACHED AND AFTER
425
00:19:27,600 --> 00:19:29,467
STAPLING IT TO THE BACK
OF THE SADDLE
426
00:19:29,469 --> 00:19:31,869
THE FRONT IS HAND-STITCHED
TO THE POMMEL.
427
00:19:31,871 --> 00:19:34,404
THIS IS CALLED LACING IT IN.
428
00:19:34,406 --> 00:19:36,273
THE SADDLE IS NOW COMPLETE
429
00:19:36,275 --> 00:19:38,609
AND READY TO BE SHIPPED
NEARLY 12,000 MILES
430
00:19:38,611 --> 00:19:41,212
AWAY TO ITS NEW OWNER
IN NEW ZEALAND.
431
00:19:41,214 --> 00:19:44,015
SO, THE SADDLE,
432
00:19:44,017 --> 00:19:46,817
THOUSANDS OF YEARS
OF MILITARY DEVELOPMENT
433
00:19:46,819 --> 00:19:49,353
USED FOR MORE PEACEFUL
PURSUITS TODAY.
434
00:19:49,355 --> 00:19:51,489
NOW, THAT IS
AN INCREDIBLE INVENTION.
435
00:19:53,826 --> 00:19:55,892
SO, THERE YOU HAVE IT.
436
00:19:55,894 --> 00:19:58,295
A GLANCE THROUGH THE HIDDEN
HISTORY, SUPER SCIENCE,
437
00:19:58,297 --> 00:20:01,098
AND AMAZING PRODUCTS
THAT YOU USE EVERY DAY
438
00:20:01,100 --> 00:20:02,700
BUT YOU MAY NOT HAVE REALIZED
439
00:20:02,702 --> 00:20:04,368
THEIR FASCINATING BACKGROUNDS.
440
00:20:04,370 --> 00:20:07,104
THE SWISS ARMY KNIFE,
441
00:20:07,106 --> 00:20:09,306
THE WINGLET,
AND THE SADDLE.
442
00:20:09,308 --> 00:20:11,375
THEY MAY SEEM COMMON
AND ORDINARY
443
00:20:11,377 --> 00:20:14,111
HOWEVER THESE PRODUCTS
HELPED CHANGE THE WORLD
444
00:20:14,113 --> 00:20:23,018
ONE INCREDIBLE INVENTION
AT A TIME.
49037
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