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00:00:02,310 --> 00:00:05,206
--Captions by VITAC--
www.vitac.com
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00:00:05,310 --> 00:00:08,275
CAPTIONS PAID FOR BY
DISCOVERY COMMUNICATIONS
3
00:00:54,034 --> 00:00:56,310
Narrator: GOLFERS USE
DIFFERENT TYPES OF CLUBS
4
00:00:56,413 --> 00:00:58,655
FOR DIFFERENT TYPES OF SHOTS --
5
00:00:58,758 --> 00:01:01,206
WOODS FOR LONG-DISTANCE SHOTS
OFF A TEE,
6
00:01:01,310 --> 00:01:04,000
PUTTERS TO GENTLY ROLL THE BALL
INTO THE CUP,
7
00:01:04,103 --> 00:01:06,310
AND IRONS
FOR EVERYTHING IN BETWEEN.
8
00:01:06,413 --> 00:01:07,758
THAT'S WHY IN GOLF,
9
00:01:07,862 --> 00:01:09,862
CHOOSING THE RIGHT CLUB
FOR THE SHOT
10
00:01:09,965 --> 00:01:12,241
IS A KEY PART OF GAME STRATEGY.
11
00:01:20,965 --> 00:01:22,586
THE HEADS OF THESE GOLF CLUBS
12
00:01:22,689 --> 00:01:26,827
ARE MADE FROM AEROSPACE-GRADE
STAINLESS STEEL.
13
00:01:26,931 --> 00:01:28,206
TO PRODUCE THEM,
14
00:01:28,310 --> 00:01:32,103
THE FACTORY BEGINS WITH
A WAX REPLICA OF THE CLUBHEAD.
15
00:01:32,206 --> 00:01:34,620
TO MAKE THIS WAX PATTERN,
AS IT'S CALLED,
16
00:01:34,724 --> 00:01:37,551
THEY INJECT HOT WAX INTO A MOLD.
17
00:01:37,655 --> 00:01:40,034
THEY EXTRACT THE PATTERN
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00:01:40,137 --> 00:01:42,931
AND SNIP OFF THE BULK
OF THE EXCESS WAX.
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00:01:49,689 --> 00:01:51,586
USING HOT WAX AS AN ADHESIVE,
20
00:01:51,689 --> 00:01:54,965
A ROBOT JOINS SEVERAL PATTERNS
TO OTHER WAX PARTS
21
00:01:55,068 --> 00:01:57,517
IN THE SHAPE OF GATES
AND RUNNERS,
22
00:01:57,620 --> 00:01:58,862
THE TERM FOR THE CHANNELS
23
00:01:58,965 --> 00:02:01,862
THAT GUIDE MOLTEN METAL
INTO THE CASTING MOLD.
24
00:02:03,413 --> 00:02:05,310
THEN THE ROBOT DIPS
THESE PATTERNS
25
00:02:05,413 --> 00:02:08,172
INTO LIQUID CERAMIC MATERIAL
FOUR TIMES,
26
00:02:08,275 --> 00:02:11,862
WITH A SHOWER OF SILICA SAND
IN BETWEEN EACH COAT.
27
00:02:11,965 --> 00:02:13,931
THE CERAMIC AND SAND HARDEN,
28
00:02:14,034 --> 00:02:16,965
FORMING A SHELL
AROUND THE WAX PATTERNS.
29
00:02:17,068 --> 00:02:19,724
THEN THE FACTORY
MELTS OUT THE WAX.
30
00:02:19,827 --> 00:02:21,758
THE SHELL IS NOW A MOLD
31
00:02:21,862 --> 00:02:25,275
WITH WHICH TO CAST
THE METAL CLUBHEADS.
32
00:02:25,379 --> 00:02:26,724
ON THE CASTING FLOOR,
33
00:02:26,827 --> 00:02:31,034
A FURNACE HEATS STEEL BARS
TO 3,000 DEGREES FAHRENHEIT --
34
00:02:31,137 --> 00:02:33,172
WELL BEYOND THE MELTING POINT.
35
00:02:33,275 --> 00:02:36,241
MEANWHILE, ANOTHER FURNACE
HEATS THE MOLDS
36
00:02:36,344 --> 00:02:38,241
TO 1,800 DEGREES FAHRENHEIT.
37
00:02:38,344 --> 00:02:42,000
THIS BURNS OUT
ANY REMAINING WAX.
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00:02:42,103 --> 00:02:43,965
IT ALSO FIRES THE CERAMIC,
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00:02:44,068 --> 00:02:47,620
MAKING IT STRONG ENOUGH
TO WITHSTAND MOLTEN METAL.
40
00:02:47,724 --> 00:02:50,310
THE POURING TECHNIQUE
IS CRITICAL.
41
00:02:50,413 --> 00:02:52,586
THE METAL MUST FLOW
AT A CONSISTENT RATE
42
00:02:52,689 --> 00:02:57,172
TO PREVENT THE FORMATION
OF AIR BUBBLES.
43
00:02:57,275 --> 00:02:59,172
AFTER FIVE HOURS,
44
00:02:59,275 --> 00:03:01,724
A PNEUMATIC HAMMER
BREAKS APART THE MOLD.
45
00:03:06,103 --> 00:03:08,103
WORKERS SAW OFF THE GATES
AND RUNNERS,
46
00:03:08,206 --> 00:03:11,448
SEPARATING THE CLUBHEADS.
47
00:03:11,551 --> 00:03:12,965
THEN THEY GRIND OFF
48
00:03:13,068 --> 00:03:16,068
THE LAST REMNANTS
OF THE GATES AND RUNNERS.
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00:03:22,000 --> 00:03:25,206
A TURNTABLE RUNS THE CLUBHEADS
THROUGH A SANDBLASTER,
50
00:03:25,310 --> 00:03:28,034
WHICH GIVES THE METAL
A PARTICULAR FINISH.
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00:03:32,137 --> 00:03:34,586
NEXT, THEY STICK ON
A METAL BADGE
52
00:03:34,689 --> 00:03:37,586
BEARING THE CLUB'S MODEL NAME.
53
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THEY APPLY
A DOT OF AUTOMOTIVE PAINT.
54
00:03:40,413 --> 00:03:43,206
THE COLOR IDENTIFIES
THE ANGLE OF THE CLUB.
55
00:03:43,310 --> 00:03:45,965
THERE ARE 12 DIFFERENT ANGLES.
56
00:03:48,137 --> 00:03:51,655
NOW THEY LINE THE NECK
OF THE CLUBHEAD WITH EPOXY,
57
00:03:51,758 --> 00:03:54,310
THEN COAT THE END OF THE SHAFT
WITH EPOXY
58
00:03:54,413 --> 00:03:56,931
AND SLIP IT INTO THE NECK.
59
00:03:57,034 --> 00:04:01,310
A PNEUMATIC HAMMER PUSHES THE
SHAFT IN AS AS FAR AS IT CAN GO.
60
00:04:01,413 --> 00:04:05,758
THE SHAFT IS MADE OF EITHER
EXTRUDED STEEL OR CARBON FIBER.
61
00:04:09,275 --> 00:04:11,172
NOW IT'S TIME
TO WORK ON THE SHAFT.
62
00:04:11,275 --> 00:04:13,379
FIRST, THEY CUT IT
TO THE RIGHT LENGTH,
63
00:04:13,482 --> 00:04:15,551
DEPENDING ON THE MODEL.
64
00:04:20,413 --> 00:04:22,862
THEN THEY PUT THE SHAFT
ON A SPINDLE
65
00:04:22,965 --> 00:04:25,965
AND WRAP THE TOP 10 INCHES
IN DOUBLE-SIDED TAPE
66
00:04:26,068 --> 00:04:28,034
TO HOLD THE CLUB'S RUBBER GRIP.
67
00:04:34,551 --> 00:04:37,689
THEY LUBRICATE THE TAPE
AND THE INSIDE OF THE GRIP
68
00:04:37,793 --> 00:04:40,275
BEFORE SLIDING THE GRIP
OVER THE SHAFT.
69
00:04:40,379 --> 00:04:44,103
A LASER LINE HELPS THEM ALIGN
THE GRIP IN THE RIGHT POSITION.
70
00:04:44,206 --> 00:04:47,724
THIS IS CRITICAL, BECAUSE
THE GRIP IS THE GOLFER'S GUIDE
71
00:04:47,827 --> 00:04:49,206
TO CORRECT HAND POSITIONING,
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WHICH IS ESSENTIAL
TO A GOOD SWING.
73
00:04:52,655 --> 00:04:55,793
NEXT, A COMPUTER READS THE LIE,
74
00:04:55,896 --> 00:04:59,448
THE TERM FOR THE CLUBHEAD'S
ANGLE RELATIVE TO THE GROUND.
75
00:04:59,551 --> 00:05:01,172
THEN IT READS THE LOFT --
76
00:05:01,275 --> 00:05:04,379
THE TERM FOR THE ANGLE
OF THE CLUBHEAD'S FACE.
77
00:05:04,482 --> 00:05:06,689
THE COMPUTER THEN TELLS
THE TECHNICIAN
78
00:05:06,793 --> 00:05:09,103
WHAT ADJUSTMENTS TO MAKE.
79
00:05:09,206 --> 00:05:10,655
ONCE HE'S MADE THE ADJUSTMENTS,
80
00:05:10,758 --> 00:05:13,620
THE COMPUTER REANALYZES
THE NEW LOFT AND LIE
81
00:05:13,724 --> 00:05:16,137
TO ENSURE THEY'RE PERFECT.
82
00:05:19,482 --> 00:05:23,551
FINALLY, THE GOLF CLUB GOES
FOR A WEIGH-IN.
83
00:05:23,655 --> 00:05:25,689
THE SCALE SHOWS THAT THIS CLUB
84
00:05:25,793 --> 00:05:29,034
NEEDS ANOTHER 18 GRAMS
TO BRING IT UP TO SPEC,
85
00:05:29,137 --> 00:05:33,448
SO THEY AFFIX AN 18-GRAM WEIGHT
MADE OF THERMOPLASTIC AND METAL.
86
00:05:33,551 --> 00:05:37,068
ACTUALLY, IT WEIGHS
SLIGHTLY LESS THAN 18 GRAMS,
87
00:05:37,172 --> 00:05:40,137
BECAUSE THEY FACTOR IN
THE WEIGHT OF THE EPOXY GLUE.
88
00:05:42,172 --> 00:05:45,344
IT'S THIS TYPE OF PRECISION
THAT ENSURE THESE GOLF CLUBS
89
00:05:45,448 --> 00:05:48,379
FIT THE QUALITY SPECIFICATIONS
TO A "T."
90
00:06:02,896 --> 00:06:05,620
Narrator: THE WAFFLE STARTED OUT
IN THE MIDDLE AGES
91
00:06:05,724 --> 00:06:08,034
AS A FLAT WAFER MADE
NOT FROM WHEAT FLOUR,
92
00:06:08,137 --> 00:06:09,551
BUT FROM OATS OR BARLEY.
93
00:06:09,655 --> 00:06:12,172
AS ITS POPULARITY SPREAD
THROUGHOUT EUROPE,
94
00:06:12,275 --> 00:06:15,000
MANY VARIATIONS OF SHAPE
AND RECIPE DEVELOPED.
95
00:06:15,103 --> 00:06:17,586
THE INTRODUCTION
OF LEAVENING INGREDIENTS
96
00:06:17,689 --> 00:06:20,448
GAVE RISE TO THE FLUFFY
HONEYCOMB BREAKFAST CAKE
97
00:06:20,551 --> 00:06:22,241
WE KNOW TODAY.
98
00:06:26,586 --> 00:06:29,724
THE INTRODUCTION
OF FROZEN WAFFLES IN THE 1950s
99
00:06:29,827 --> 00:06:33,896
MARKED THE DAWN OF A NEW ERA FOR
THESE BREAKFAST BATTER CAKES.
100
00:06:34,000 --> 00:06:37,310
MAKING YOUR MORNING WAFFLES
WAS SUDDENLY A SNAP.
101
00:06:41,172 --> 00:06:44,586
ALL THE BIG PREP WORK
TAKES PLACE AT THE BIG FACTORY.
102
00:06:44,689 --> 00:06:48,586
THEY ADD FLAVORINGS LIKE BERRIES
TO A FLOUR-BASED WAFFLE MIX,
103
00:06:48,689 --> 00:06:51,517
AND THEN TURN
TO THE LIQUID INGREDIENTS --
104
00:06:51,620 --> 00:06:54,482
WATER, CANOLA OIL,
AND LIQUID CANE SUGAR.
105
00:06:54,586 --> 00:06:57,931
THEY POUR THEM INTO A BIG TANK
AND MIX THOROUGHLY.
106
00:06:58,034 --> 00:07:01,206
THEN THEY'RE READY TO THICKEN IT
INTO A BATTER
107
00:07:01,310 --> 00:07:03,551
WITH A FLOUR-BASED
WAFFLE PREMIX.
108
00:07:03,655 --> 00:07:07,103
IT ALSO INCLUDES BAKING POWDER,
WHICH REACTS WITH WATER
109
00:07:07,206 --> 00:07:09,965
TO CAUSE POCKETS
OF CARBON DIOXIDE TO FORM
110
00:07:10,068 --> 00:07:14,172
FOR A LEAVENING AFFECT THAT
WILL CONTINUE DURING BAKING.
111
00:07:14,275 --> 00:07:17,586
AFTER ADDING MORE BERRIES,
THIS BATTER IS COMPLETE,
112
00:07:17,689 --> 00:07:20,034
AND THERE'S ENOUGH
IN THIS ONE TANK
113
00:07:20,137 --> 00:07:22,758
TO PRODUCE 3,600 WAFFLES.
114
00:07:22,862 --> 00:07:25,551
HOT WAFFLE IRONS
MOVE PAST A SPRAYER
115
00:07:25,655 --> 00:07:29,137
FOR A MISTING
WITH A NONSTICK COATING.
116
00:07:29,241 --> 00:07:31,862
DOWN THE LINE, AN AUTOMATED PUMP
117
00:07:31,965 --> 00:07:35,241
DEPOSITS MEASURED AMOUNTS
OF BATTER ONTO EACH GRID PLATE.
118
00:07:37,517 --> 00:07:40,793
THE TOP GRID PLATES
ENCASE THE BATTER.
119
00:07:42,413 --> 00:07:44,724
THIS PRODUCTION LINE
IS COMPUTERIZED,
120
00:07:44,827 --> 00:07:47,448
WHICH ENSURES THE PLATES
ARE FILLED QUICKLY
121
00:07:47,551 --> 00:07:49,000
AND WITHOUT ANY SPILLS.
122
00:07:56,793 --> 00:08:00,275
AS THEY MOVE TOWARDS THE OVEN,
THE WAFFLE IRONS ROTATE,
123
00:08:00,379 --> 00:08:04,172
ALLOWING THE BATTER TO REACH
ALL THE CREVICES INSIDE.
124
00:08:06,275 --> 00:08:08,896
THEY NOW MOVE
THROUGH A LONG GAS OVEN.
125
00:08:09,000 --> 00:08:12,103
IT TAKES ABOUT TWO MINUTES
FOR THEM TO COOK.
126
00:08:15,586 --> 00:08:18,034
THEY EMERGE FROM THE OVEN
PIPING-HOT,
127
00:08:18,137 --> 00:08:20,034
WHERE A MACHINE
CALLED A PICKING DRUM
128
00:08:20,137 --> 00:08:23,206
REMOVES THEM FROM THE IRONS.
129
00:08:23,310 --> 00:08:26,448
AS THE PICKING DRUM REVOLVES,
NEEDLES GRAB THE WAFFLES
130
00:08:26,551 --> 00:08:29,344
AND PULL THEM
OFF THE HOT GRID PLATES.
131
00:08:35,448 --> 00:08:39,551
THE PICKING DRUM TRANSPORTS
THE WAFFLES UP TO ANOTHER LEVEL.
132
00:08:46,068 --> 00:08:47,448
THE NEEDLES RETRACT,
133
00:08:47,551 --> 00:08:50,241
TRANSFERRING
TO A SERIES OF CONVEYORS.
134
00:08:55,931 --> 00:08:57,655
AT THE OTHER SIDE
OF THE FACTORY,
135
00:08:57,758 --> 00:09:00,689
THE WAFFLES ENTER
A BLAST FREEZER.
136
00:09:03,068 --> 00:09:07,000
THE TEMPERATURE INSIDE
IS MINUS 19 DEGREES FAHRENHEIT.
137
00:09:10,034 --> 00:09:12,448
FANS BLOW FRIGID AIR
ONTO THE WAFFLES
138
00:09:12,551 --> 00:09:14,862
AS THEY SPIRAL
THROUGH THE FREEZER.
139
00:09:14,965 --> 00:09:16,482
IT TAKES JUST 20 MINUTES
140
00:09:16,586 --> 00:09:20,206
TO FREEZE AND PRESERVE
THESE FRESHLY BAKED WAFFLES.
141
00:09:23,172 --> 00:09:25,517
THE FROZEN WAFFLES
NOW MERGE INTO LANES
142
00:09:25,620 --> 00:09:29,206
TO BE SORTED FOR STACKING.
143
00:09:31,448 --> 00:09:34,931
A KIND OF TRAP-DOOR SYSTEM
RELEASES THEM THREE AT A TIME
144
00:09:35,034 --> 00:09:37,896
TO GRIPPERS THAT MOVE THEM
ONTO A CONVEYOR.
145
00:09:47,310 --> 00:09:49,034
THE CONVEYOR LANE NARROWS,
146
00:09:49,137 --> 00:09:52,448
WHICH FORCES THE WAFFLE STACKS
INTO A SINGLE ROW.
147
00:09:52,551 --> 00:09:55,517
A SENSOR-ACTIVATED GATE
RELEASES THE STACKS
148
00:09:55,620 --> 00:09:59,310
TWO AT A TIME
TO THE PACKAGING STATION.
149
00:10:01,034 --> 00:10:04,551
IT TAKES JUST A SECOND FOR
THE TWO STACKS OF FROZEN WAFFLES
150
00:10:04,655 --> 00:10:08,586
TO BE WRAPPED AND SEALED
IN A TIGHT CELLOPHANE PACKAGE.
151
00:10:14,379 --> 00:10:16,034
THEN IT'S INTO A METAL DETECTOR.
152
00:10:16,137 --> 00:10:17,896
TO DEMONSTRATE HOW IT WORKS,
153
00:10:18,000 --> 00:10:20,689
WE PLACE A QUARTER
ON ONE OF THE PACKAGES.
154
00:10:20,793 --> 00:10:23,000
THE SYSTEM SENSES IT
IMMEDIATELY,
155
00:10:23,103 --> 00:10:27,034
AND A BLOWER BLASTS THE PACKAGE
OFF THE CONVEYOR.
156
00:10:29,137 --> 00:10:32,724
SUCTIONING FINGERS NOW PICK UP
THE OUTER PAPERBOARD BOX
157
00:10:32,827 --> 00:10:35,758
AND OPEN IT AS THEY PLACE IT
ON THE CONVEYOR.
158
00:10:37,517 --> 00:10:41,758
A RAM THEN SHOVES THE WRAPPED
WAFFLES INTO THE BOX.
159
00:10:43,931 --> 00:10:45,793
INCREDIBLY, THEY CHURN OUT
160
00:10:45,896 --> 00:10:49,379
MORE THAN 8,600 WAFFLES AN HOUR
AT THIS FACTORY,
161
00:10:49,482 --> 00:10:53,448
CATERING TO DIFFERENT TASTES
AND DIETARY REQUIREMENTS,
162
00:10:53,551 --> 00:10:56,379
AND THAT MERITS A TOAST.
163
00:11:10,827 --> 00:11:13,206
Narrator: MUCH OF TODAY'S
HIGH-TECH EQUIPMENT
164
00:11:13,310 --> 00:11:15,931
REQUIRES SPECIALTY WIRES
AND CABLES,
165
00:11:16,034 --> 00:11:19,482
FROM STAGE LIGHTING
TO MEDICAL DEVICES TO ROBOTICS.
166
00:11:19,586 --> 00:11:22,586
WIRES AND CABLES
HAVE TO BE CUSTOM DESIGNED
167
00:11:22,689 --> 00:11:26,344
AND EXPERTLY MANUFACTURED
TO PERFORM IN A SPECIFIC WAY
168
00:11:26,448 --> 00:11:29,965
AND WITHSTAND VARIOUS
ENVIRONMENTAL CONDITIONS.
169
00:11:33,206 --> 00:11:36,551
CABLES CAN BE DESIGNED
TO WITHSTAND HIGH TEMPERATURES
170
00:11:36,655 --> 00:11:38,379
OR PERFORM SPECIAL FUNCTIONS
171
00:11:38,482 --> 00:11:43,655
SUCH AS SENSING pH LEVELS
OR PROXIMITY TO OBJECTS.
172
00:11:43,758 --> 00:11:45,241
AT THE HEART OF A CABLE
173
00:11:45,344 --> 00:11:47,931
ARE ELECTRICAL WIRES
CALLED CONDUCTORS.
174
00:11:48,034 --> 00:11:51,793
A CONDUCTOR BEGINS
AS A BARE COPPER WIRE.
175
00:11:51,896 --> 00:11:55,689
THIS EXTRUSION MACHINE
COATS IT IN PLASTIC.
176
00:11:57,448 --> 00:12:00,724
CHILLED WATER SOLIDIFIES
THE PLASTIC AROUND THE WIRE
177
00:12:00,827 --> 00:12:02,758
AS INSULATION.
178
00:12:02,862 --> 00:12:05,896
THIS ISOLATES EACH WIRE
FROM ITS NEIGHBORS.
179
00:12:06,000 --> 00:12:10,206
EVERY CONDUCTOR PASSES THROUGH
A MACHINE CALLED A SPARK TESTER.
180
00:12:10,310 --> 00:12:12,482
IT RUNS CURRENT
THROUGH THE CONDUCTOR
181
00:12:12,586 --> 00:12:14,793
TO ENSURE
THE INSULATION IS FLAWLESS.
182
00:12:14,896 --> 00:12:18,551
IF THERE'S EVEN THE SMALLEST
BREAK IN THE INSULATION,
183
00:12:18,655 --> 00:12:22,344
THE MACHINE WILL SOUND THE ALARM
AND LOCATE THE SPOT.
184
00:12:26,896 --> 00:12:29,896
THE CONDUCTOR THEN ENTERS
A MACHINE CALLED A CABLER.
185
00:12:30,000 --> 00:12:32,482
IT UNROLLS SPOOLS
OF INSULATED CONDUCTORS
186
00:12:32,586 --> 00:12:34,482
AND UNITES THEM
WITH OTHER COMPONENTS
187
00:12:34,586 --> 00:12:37,137
TO FORM THE CABLE'S
INNER WORKINGS.
188
00:12:37,241 --> 00:12:40,000
AT THE CENTER
OF THIS PARTICULAR CABLE
189
00:12:40,103 --> 00:12:43,586
IS A TWISTED PAIR
OF INSULATED CONDUCTORS.
190
00:12:43,689 --> 00:12:47,413
AROUND THEM GO COLOR-COATED
INSULATED CONDUCTORS
191
00:12:47,517 --> 00:12:50,931
AND FILLERS TO FILL IN THE GAPS
BETWEEN THE CONDUCTORS,
192
00:12:51,034 --> 00:12:54,655
GIVING THE CABLE A SMOOTH,
CYLINDRICAL SHAPE.
193
00:12:54,758 --> 00:12:58,758
HERE THE FILLERS ARE STRANDS
OF POLYPROPYLENE FOAM.
194
00:12:58,862 --> 00:13:02,275
AN ORIENTATION PLATE
ALIGNS THE COMPONENTS
195
00:13:02,379 --> 00:13:04,448
IN THE PROPER CONFIGURATION
196
00:13:04,551 --> 00:13:08,068
AS THEY ENTER
THE CABLE-ASSEMBLY DIE.
197
00:13:10,551 --> 00:13:12,620
THE COMPONENTS EXIT THE DIE
198
00:13:12,724 --> 00:13:15,482
WITH THE FILLERS WOUND AROUND
THE INSULATED CONDUCTORS,
199
00:13:15,586 --> 00:13:19,241
WHICH WRAP AROUND
THE CENTRAL WIRE.
200
00:13:19,344 --> 00:13:21,931
THE NEXT MACHINE,
CALLED A TAPING HEAD,
201
00:13:22,034 --> 00:13:24,827
WRAPS BINDER TAPE
AROUND THE CABLE.
202
00:13:24,931 --> 00:13:27,586
THIS TAPE HOLDS EVERYTHING
TIGHTLY IN POSITION
203
00:13:27,689 --> 00:13:31,068
SO THAT THE ASSEMBLED COMPONENTS
DON'T UNRAVEL.
204
00:13:35,344 --> 00:13:38,344
THIS IS A DIFFERENT TYPE
OF CABLE ASSEMBLY MACHINE.
205
00:13:38,448 --> 00:13:39,724
LIKE BEFORE,
206
00:13:39,827 --> 00:13:43,379
ALL THE INSULATED CONDUCTORS
UNROLL FROM THEIR REELS
207
00:13:43,482 --> 00:13:46,862
AND TRAVEL THROUGH THE HOLES
OF AN ORIENTATION PLATE.
208
00:13:46,965 --> 00:13:50,206
DIES DIVIDE THE SIX CONDUCTORS
OF THIS CABLE
209
00:13:50,310 --> 00:13:52,206
INTO THREE GROUPS OF TWO,
210
00:13:52,310 --> 00:13:56,862
TWISTING THE CONDUCTORS
OF EACH PAIR TOGETHER.
211
00:13:56,965 --> 00:14:00,310
THE MACHINE THEN WRAPS
EACH TWISTED PAIR
212
00:14:00,413 --> 00:14:03,793
IN A SHIELD MADE
OF ALUMINUM-COATED POLYESTER.
213
00:14:03,896 --> 00:14:06,344
SHIELDING ELIMINATES
WHAT'S KNOWN AS CROSS TALK --
214
00:14:06,448 --> 00:14:08,758
SIGNALS INTERFERING
WITH EACH OTHER.
215
00:14:08,862 --> 00:14:10,862
THE NEXT DIE
JOINS ADDITIONAL WIRES
216
00:14:10,965 --> 00:14:14,448
THAT DON'T NEED TO BE SHIELDED
TO THE SHIELDED ONES.
217
00:14:14,551 --> 00:14:17,758
THEN EVERYTHING GETS TWISTED
INTO ONE CABLE.
218
00:14:17,862 --> 00:14:21,655
THEN A FINAL TWISTING,
SEEN HERE IN SLOW MOTION.
219
00:14:21,758 --> 00:14:26,724
THE ACTUAL SPEED
IS 1,000 REVOLUTIONS PER MINUTE.
220
00:14:26,827 --> 00:14:32,034
THE NEXT MACHINE WRAPS
TISSUE PAPER AROUND THE CABLE.
221
00:14:32,137 --> 00:14:34,586
THEN AN EXTRUDER
APPLIES A JACKET
222
00:14:34,689 --> 00:14:37,379
MADE OF A PLASTIC
AND RUBBER COMPOUND.
223
00:14:37,482 --> 00:14:40,137
THE TISSUE PAPER
ACTS AS A SEPARATOR,
224
00:14:40,241 --> 00:14:43,896
PREVENTING THE JACKET FROM
STICKING TO THE CABLE INSIDE.
225
00:14:51,413 --> 00:14:53,724
SOMETIMES,
INSTEAD OF TISSUE PAPER,
226
00:14:53,827 --> 00:14:56,275
THE CABLE RUNS THROUGH
A BATH OF TALC.
227
00:14:56,379 --> 00:14:58,724
TALC IS A MINERAL
THAT ABSORBS HEAT,
228
00:14:58,827 --> 00:15:00,448
SO JUST LIKE TISSUE PAPER,
229
00:15:00,551 --> 00:15:03,379
IT PREVENTS THE JACKET
FROM STICKING.
230
00:15:08,000 --> 00:15:11,172
ONCE AGAIN, AS THE CABLE EXITS
THE EXTRUDER,
231
00:15:11,275 --> 00:15:15,448
CHILLED WATER SOLIDIFIES THE
MOLTEN MATERIAL INTO A JACKET.
232
00:15:15,551 --> 00:15:18,931
A WHEEL WITH RAISED LETTERING
IMPRINTS THE MANUFACTURER'S NAME
233
00:15:19,034 --> 00:15:23,793
AND TECHNICAL SPECIFICATIONS
INTO THE JACKET.
234
00:15:23,896 --> 00:15:26,551
CERTAIN JACKETED CABLES
NEED A BRAIDED SHIELD
235
00:15:26,655 --> 00:15:29,724
TO ELIMINATE
ELECTRICAL INTERFERENCE.
236
00:15:29,827 --> 00:15:32,172
THIS MACHINE
HAS 48 CARRIER SPOOLS,
237
00:15:32,275 --> 00:15:36,689
EACH OF WHICH HOLDS 10 WIRES
MADE OF TIN-PLATED COPPER.
238
00:15:36,793 --> 00:15:39,931
AS THEY JACKETED CABLE MOVES
UPWARD THROUGH THE MACHINE,
239
00:15:40,034 --> 00:15:42,241
THE SPOOLS MOVE
IN A PROGRAMMED PATTERN,
240
00:15:42,344 --> 00:15:45,206
WEAVING THE SHIELD
AROUND THE CABLE.
241
00:15:51,620 --> 00:15:54,206
FROM THERE, A LAST TRIP
THROUGH THE EXTRUDER
242
00:15:54,310 --> 00:15:58,896
FOR A FINAL
THERMOPLASTIC JACKET...
243
00:15:59,000 --> 00:16:00,413
AND THE CUSTOM-MADE CABLE
244
00:16:00,517 --> 00:16:04,000
IS READY TO BE CONNECTED
AND POWERED UP.
245
00:16:20,137 --> 00:16:23,586
Narrator: TRAIN WHEELS ARE USED
ON RAILCARS AROUND THE WORLD.
246
00:16:23,689 --> 00:16:26,551
PASSENGER TRAINS RELY ON THEM
TO TRANSPORT PEOPLE.
247
00:16:26,655 --> 00:16:29,517
FREIGHT CARS DEPEND ON THEM
FOR HAULING PRODUCTS.
248
00:16:29,620 --> 00:16:32,965
AND THE LOCOMOTIVES THAT PULL
THESE TRAINS AND FREIGHT CARS
249
00:16:33,068 --> 00:16:37,000
COUNT ON THEM TO KEEP PEOPLE
AND PRODUCTS MOVING SMOOTHLY.
250
00:16:42,344 --> 00:16:45,448
THIS COMPANY HAS BEEN MAKING
TRAIN WHEELS AND AXLES
251
00:16:45,551 --> 00:16:47,965
FOR OVER 150 YEARS.
252
00:16:49,965 --> 00:16:53,413
TO START, AN ELECTRIC FURNACE
MELTS RECYCLED STEEL
253
00:16:53,517 --> 00:16:56,344
AT ABOUT
2,900 DEGREES FAHRENHEIT.
254
00:17:02,068 --> 00:17:05,103
A GIGANTIC BUCKET THEN TRANSFERS
THE LIQUID METAL
255
00:17:05,206 --> 00:17:08,724
INTO WHAT'S CALLED A MOLD PIT.
256
00:17:08,827 --> 00:17:12,793
INSIDE THE PIT, THE METAL FILLS
EIGHT HOLES FROM THE BOTTOM UP,
257
00:17:12,896 --> 00:17:16,137
CREATING STEEL INGOTS
20-FEET-LONG.
258
00:17:23,482 --> 00:17:25,103
A BAND SAW
CUTS THE COOLED INGOTS
259
00:17:25,206 --> 00:17:28,137
INTO SECTIONS CALLED
WHEEL MOLTS.
260
00:17:28,241 --> 00:17:31,241
EACH MOLT
WEIGHS ABOUT 1,000 POUNDS.
261
00:17:35,172 --> 00:17:38,068
TO PREPARE THE MOLTS
FOR FORMING INTO TRAIN WHEELS,
262
00:17:38,172 --> 00:17:39,827
AUTOMATED MACHINERY LOADS THEM
263
00:17:39,931 --> 00:17:43,689
INTO ONE DOOR
OF THIS ROTARY FURNACE...
264
00:17:43,793 --> 00:17:48,655
AND THEY EXIT THE OTHER SIDE AT
AROUND 2,400 DEGREES FAHRENHEIT.
265
00:17:54,310 --> 00:17:56,344
A MACHINE THEN PLACES THE MOLTS
266
00:17:56,448 --> 00:17:58,620
INTO A HIGH-PRESSURE
WATER-DESCALING UNIT
267
00:17:58,724 --> 00:18:02,000
THAT REMOVES
THE OUTERMOST LAYER OF METAL.
268
00:18:05,413 --> 00:18:08,965
A PRESS THEN SQUASHES EACH MOLT
LIKE A MARSHMALLOW
269
00:18:09,068 --> 00:18:10,862
WITH 9,000 TONS OF PRESSURE,
270
00:18:10,965 --> 00:18:14,689
FORGING IT INTO THE ROUGH SHAPE
OF A TRAIN WHEEL.
271
00:18:20,413 --> 00:18:22,827
THE TRAIN WHEEL
IS 30 INCHES IN DIAMETER
272
00:18:22,931 --> 00:18:25,172
WHEN A ROBOT REMOVES IT
FROM THE PRESS
273
00:18:25,275 --> 00:18:27,896
AND DELIVERS IT
TO A ROLLING MILL.
274
00:18:32,206 --> 00:18:34,000
THE MILL SQUEEZES
AND SHAPES THE WHEEL
275
00:18:34,103 --> 00:18:39,034
UNTIL IT EXPANDS TO 36 INCHES
IN DIAMETER, A 20% INCREASE.
276
00:18:48,310 --> 00:18:50,931
THE TRAIN WHEEL THEN ENTERS
A FINAL SHAPING PRESS
277
00:18:51,034 --> 00:18:54,344
THAT PUNCHES OUT THE HOLE
WHERE THE AXLE WILL GO.
278
00:18:57,517 --> 00:19:01,965
ALL EXCESS MATERIAL GOES BACK
TO THE MELT SHOP FOR RECYCLING.
279
00:19:05,206 --> 00:19:06,551
AFTER HEAT TREATMENT,
280
00:19:06,655 --> 00:19:10,241
A MACHINE SPRAYS THE OUTSIDE
OF THE WHEEL WITH COLD WATER,
281
00:19:10,344 --> 00:19:13,758
WHICH HARDENS THE STEEL.
282
00:19:13,862 --> 00:19:18,206
NEXT, THEY MACHINE THE RIM
OF THE WHEEL AND THE AXLE HOLE.
283
00:19:21,172 --> 00:19:25,000
A WORKER THEN ENSURES
THEY MEET ALL SPECIFICATIONS.
284
00:19:28,793 --> 00:19:30,689
IDENTIFIED AND LABELED,
285
00:19:30,793 --> 00:19:34,206
THE WHEELS ARE NOW READY
FOR THE AXLES.
286
00:19:39,758 --> 00:19:42,413
AXLES START OFF AS STEEL INGOTS
287
00:19:42,517 --> 00:19:45,310
THAT A MANIPULATOR FEEDS
INTO A ROTARY FORGING MACHINE.
288
00:19:47,448 --> 00:19:50,068
THE MACHINE ROTATES
AND HAMMERS THE PIECE,
289
00:19:50,172 --> 00:19:53,827
GRADUALLY SHAPING THE HOT METAL
INTO AN AXLE.
290
00:20:01,413 --> 00:20:04,379
THE MANIPULATOR AND THE FORGING
MACHINE WORK AS A TEAM,
291
00:20:04,482 --> 00:20:06,551
ULTIMATELY SHAPING THE AXLE
292
00:20:06,655 --> 00:20:09,620
TO THE REQUIRED DIAMETER
AND LENGTH.
293
00:20:18,862 --> 00:20:22,551
THE AXLES THEN GO THROUGH
A HEAT-TREATING PROCESS.
294
00:20:25,310 --> 00:20:27,965
NEXT, THEY MACHINE
THE ENTIRE AXLE,
295
00:20:28,068 --> 00:20:30,068
REMOVING ALL EXCESS MATERIAL,
296
00:20:30,172 --> 00:20:33,137
AND PREPARE IT
TO ACCEPT THE TRAIN WHEEL.
297
00:20:36,827 --> 00:20:38,517
HERE, A WHEEL MOUNTING PRESS
298
00:20:38,620 --> 00:20:41,448
FITS A WHEEL
ONTO EACH END OF THE AXLE.
299
00:20:48,137 --> 00:20:52,517
A WORKER LUBRICATES THE AXLE
AND ATTACHES A BEARING.
300
00:20:56,344 --> 00:20:58,241
HE THEN BOLTS ON THE END CAP
301
00:20:58,344 --> 00:21:01,862
AND SECURES IT
USING A TORQUE WRENCH.
302
00:21:03,965 --> 00:21:08,241
A CRIMPER TOOL
LOCKS THE BOLTS IN PLACE.
303
00:21:08,344 --> 00:21:12,448
FINALLY, THE MOUNTED WHEEL SET
ROLLS OFF THE ASSEMBLY LINE,
304
00:21:12,551 --> 00:21:15,551
READY TO INSTALL
UNDER A RAIL CAR.
305
00:21:23,655 --> 00:21:25,758
IF YOU HAVE ANY COMMENTS
ABOUT THE SHOW,
306
00:21:25,862 --> 00:21:28,448
OR IF YOU'D LIKE TO SUGGEST
TOPICS FOR FUTURE SHOWS,
307
00:21:28,551 --> 00:21:31,103
DROP US A LINE AT...
24974
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