Narrator: classic chinese
furniture is made of rich,
Lacquered woods
with intricate carvings
And ornate artwork
in mother-of-pearl inlay.
For centuries,
the specialized skills
Required to craft
these functional works of art
Have been passed down
from generation to generation.
♪♪
The style of this striking
rosewood sideboard
Dates to the tang dynasty
of the 7th and 9th centuries --
A period considered
a golden age of chinese arts.
This manufacturer
is located in thailand.
Its design team consists
of a conceptual designer
Who merges the structure
and aesthetic features,
A specialist who ensures
the historical accuracy
Of the piece,
And artists
who draw the patterns
For the elaborate wood carving
And the intricate
mother-of-pearl inlays.
The team produces
a highly detailed blueprint
And makes several copies
of the artwork patterns
For the craftspeople to use.
To make each
inlaid cabinet door,
A woodworker glues
the pattern onto the wood,
Making sure
that it's perfectly centered.
Then using a router, he cuts
about 3 millimeters deep,
Making a groove
along the pattern's perimeter
And cutting out the parts
That will be inlaid
with mother-of-pearl.
Meanwhile, using another copy
of the pattern,
A worker makes templates
By cutting out the same parts
the woodworker routed
Out of the cabinet door.
Each template is marked
either pink, white, or green.
She glues it
into a 3-millimeter-thick piece
Of the corresponding color
of mother-of-pearl.
The next craftsperson
takes one piece at a time,
And holding it
steady with pliers,
Carefully saws
around the template
With a 1-millimeter-wide blade.
Once she's cut all the pieces,
She reassembles the pattern.
The next craftsperson spreads
Adhesive paste into the cutouts
in the cabinet door.
Then he fills each cutout
With its corresponding piece
of mother-of-pearl.
Five hours from now,
Once the adhesive has dried,
He runs a sander over the design
to remove the paper
And excess adhesive,
Smooth the wood,
and polish the mother-of-pearl.
Then an artist etches fine
detail into the mother-of-pearl.
This provides texture,
dimension, and expression
To objects and characters,
Which, until now,
were merely blank shapes.
High-end chinese-style furniture
like this
Is traditionally made
of heavy and sturdy rosewood.
They first dry the wood
to a humidity level of 11%.
This prevents components
from expanding
Or contracting significantly
With temperature changes,
which is critical
Because the sideboard
Is made of traditional
jointed construction.
The parts lock together
Without any nails,
screws, or glue.
To prepare pieces
that will have a carved design,
A worker glues a copy
of the pattern onto the wood.
Next, a woodworker drills
a small hole in each area
Of the pattern to be cut out.
He feeds a thin saw blade
through the hole...
...then saws out the area.
Once he cuts out
all the required areas,
He hands the piece to one
of the company's carvers.
These artisans
apprentice for years
With the master carver
to learn this ancient craft.
Working with a collection
of chisels,
They gradually
follow the pattern.
It takes tremendous talent
And skill to know
how to read a drawing
And, bit by bit, transform
the flat wood beneath it
Into a three-dimensional design.
Once all the components
are ready,
Workers assemble the sideboard
from the footed base upward.
The drawers move
on modern drawer slides,
And the cabinet doors attach
With bronze
chinese-style hardware.
They bring out the rich color
And grain of the wood
with four coats
Of traditional lacquer
Made entirely from tree sap.
It highlights the etched details
in the mother-of-pearl
And protects the sideboard
with a glossy shield.
♪♪
Narrator: light switches put a
lot of power at your fingertips.
One quick flick,
and the lights go on or off.
When switches are paired
with sockets,
Appliances and gadgetry
can also be powered up.
Invented as an improvement
over pull cords a century ago,
Switches deliver power
to the people.
♪♪
Flip a switch, and the world
Instantly becomes
a brighter place.
Switches give us power
over electrical power.
Making switches starts
with big sheets of metal.
In this case,
the sheets are brass.
A worker serves them up
to a hydraulic guillotine.
It chops the brass into strips
That will be used
to make faceplates
For custom-sized switches
and sockets.
For switches that are
a standard size,
They simply order
the strips precut.
Computerized punches cut holes
And rough out
both the faceplates
And the steel grids
That hold the electrical
structure together.
All the holes in the grid plates
Will correspond to holes
in the faceplates
In order
to put the two together.
These plates are for switches
That will be installed
in hotel rooms,
And they will include sockets
for three-pin british plugs.
Next, more steel unwinds
into a punch press,
Which transforms it
into a framework to support
The electrical components.
The automated tooling
wraps the punched metal
Around a form
to give it the desired shape.
This framework will also serve
As an electrical
grounding plate,
Discharging electrical energy
From the socket
to prevent shocks.
A worker now attaches
a molded plastic part
To a grounding plate.
He inserts a screw
in a brass connector
And installs it in a slot
in the molded plastic.
He installs a series
of brass terminals.
At the next station,
A worker assembles fuse holders,
Contacts, and springs
to the plastic structure.
Next up are little spring-
operated plastic shutters.
They block the sockets
When nothing
is plugged into them.
Moving down the assembly line,
A worker inserts springs
into twin rocker switches.
She lowers a press
To squeeze all the switch
components together,
Then transfers the switches
to the electrical unit.
Another technician
snaps a cover onto it.
He plugs it into a light box
to test it,
And the bulbs of the box
illuminate.
This confirms
that the switches
And sockets
are fully operational.
He pulls the plug
and sets the assembly aside.
It has taken
roughly four minutes
To assemble the switch
and socket unit.
A worker now fits
the steel grid plate to it
With the switches and sockets
protruding through it.
This particular unit
Is also equipped
with a round european plug
And a usb charging port
for mobile devices.
At the next station,
an operator serves up
Brass faceplates
to a press that bends the rims,
Forming a thin lip that will
fit around the grid plate.
A computerized welder
fuses studs
To the back of the faceplates,
Placing one at each corner.
These studs will fix
the faceplate
To the grid plate
And provide a screwless finish
on the front.
When it comes to switch
and socket combinations,
There's no shortage of options.
At this station,
a worker assembles
A particularly large one
with switches,
Charging ports, and sockets.
It's also designed
for installation
In a hotel room.
He secures the charging port
to the grid plate
And is ready for the faceplate.
He attaches it
using the welded studs,
And with the folded edging, it
encases the grid plate neatly.
This switch and socket assembly
is now complete.
When switched on,
the circuit will be closed,
And the electrical current
will flow.
When switched off,
the circuit will open,
And things will go dark.
It should work every time.
♪♪
Narrator:
in many east asian cultures,
Salt is not traditionally used
as a condiment.
In its place,
cooks use high-sodium sauces
Such as fish sauce.
In thailand, fish sauce
is a key ingredient
In traditional dishes,
giving them a rich
And distinctive
savory taste.
♪♪
Used in cooking
or as a dipping sauce,
Thai fish sauce
brings out the flavors
Of other ingredients.
Fish sauce
is made by fermenting
Two parts fish
with one part salt.
Over time, the salt
will naturally extract water
From the fish's flesh,
creating the savory sauce.
The factory processes
They use wild-caught anchovies
from the gulf of thailand.
Anchovies have a strong flavor,
So even small amounts
can be used to flavor dishes.
They mix two parts fish
with one part natural sea salt.
The ingredients fall down
a chute into a rotating drum.
As it spins, it evenly mixes
the salt and the fish.
This is faster
than mixing by hand,
Ensuring quicker
processing times.
When the mix is ready,
It's taken to one of the 3,000
fermentation wells on-site.
The bottom of the well
is already filled with sea salt.
They add the salt-fish mixture
and spread it around
So that the surface is flat.
They finish
by covering the mixture
With a thick layer of sea salt.
Each fermentation well can hold
They cover the well
with a cement corrugated sheet.
The temperature inside can reach
They sometimes
remove the cover
To expose the sauce to sunlight.
From time to time,
They sample the sauce
for inspection.
Salt crystals form naturally
on the surface.
After 12 to 18 months
of fermentation,
First-grade sauce
is pumped out
From the bottom
of the fermentation well
With layers of salt
acting as a natural filter.
Fish sauce is stored
in large fiberglass tanks.
Employees take samples
And send them to the lab
for quality testing.
After filtering and sweetening
the sauce slightly
With 5% sugar,
they are ready for bottling.
After a visual inspection,
Bottles head
to the filling area.
The machine grabs each bottle
and fills it from the bottom up.
Fish sauce does not need
to be pasteurized
As filtration has already
eliminated most bacteria.
Also, the sauce
contains over 25% salt.
This high-sodium content
prevents
Any harmful bacteria
from proliferating.
Because of the sauce's
intense flavor,
It is generally
used in moderation.
So bottle caps
have a small dropper hole
To facilitate use
of the sauce during cooking.
Next, brushes apply
adhesive labels to the body
And neck of the bottle.
This factory produces
three different grades
Of fish sauce
For a total of 15 million liters
every year.
After a second
visual inspection,
Bottles proceed
to the packing department.
The machine pushes them forward,
aligning them in position.
By now, the bottle caps
have been safety-sealed.
A robotic carrier picks up
Three boxes at once.
A metal frame
keeps the carton cases open
As the machine
inserts the bottles.
The tasty sauce will be
sold locally or exported
To one
of 70 different countries.
In the food-science laboratory,
Technicians perform
several quality-control tests.
They start by measuring
The salt content
of the product
As the salt
will affect the taste
And the shelf life of the sauce.
Next, they measure
the protein content.
Fish protein breaks down
during the fermentation process,
Releasing a compound
called glutamate.
Glutamate increases the flavor
intensity of the sauce.
Higher levels of protein
give a tastier,
Higher-grade sauce.
They also check
the levels of histamine
To make sure they comply
With international
food standards.
High levels of histamine
could indicate spoilage.
They end with a ph test.
Good fish sauce
is slightly acidic,
And the ph value must remain
within an acceptable range.
People now use fish sauce
not only in thai dishes,
But also to flavor
their own traditional foods.
♪♪
Narrator:
cappers are automated machines
Which apply caps on bottles
That have been filled
with a factory product --
Anything from shampoo
to soft drinks.
The closures the cappers
apply include screw caps,
Push-down tops,
And aluminum caps molded
to the shape of the bottle neck.
♪♪
Cappers come in different sizes
To meet
the product manufacturers'
Packaging requirements,
From three-head machines
that cap 40 bottles per minute,
To 36-head machines that cap
Every capper is custom-designed
For the product being packaged,
So producers must supply
the capper manufacturer
With samples of
their specific bottles and caps.
The first step
of the design phase
Is to paint the samples white
So that engineers can scan them
with a laser to produce
A three-dimensional
computer model.
Then the engineers use
that virtual bottle and cap
To design the machine's
bottle-handling equipment.
This refers to the components
Which transport the bottles
through the machine
As opposed to the components
that apply the cap.
This computer-guided
water-jet cutter
Slices through a stainless-steel
plate to make the bases
That support
the bottle-handling equipment
On the capper from underneath.
A computer-guided
machining center
Shapes the complex
bottle-handling components
Out of stainless-steel rods.
The capper's
bottle-capping components
Are machined the same way.
Every part undergoes
a precision inspection.
An engineer checks
the dimensions with a device
Called
a coordinate measuring machine.
A computer-guided router
cuts the plastic components
Of the bottle-handling equipment
From a 19-millimeter-thick sheet
of polyethylene.
Meanwhile, an electrician wires
the capper's control panel.
It houses the components
Which regulate
the machine's speed,
As well as the computer
that controls
All the machine's functions.
The machine has sensors that
detect the presence of a bottle
And cap at the capping head.
These sensors are wired
to the computer.
Other workers assemble the
production-line conveyor belt
That ferries bottles
into and out of the capper.
The belt is comprised
of plastic links
Connected with pins.
To begin assembling the machine,
Workers attach
the three capping heads
To the overhead carousel.
Then they install
a capping chuck in each head.
The chuck picks up a cap.
Then the capping head rotates
to screw the cap on the bottle.
A computer-guided engraver
Labels the capper's
infeed star wheel --
A disc with pockets that guide
the bottles into the machine.
Workers highlight
the engraving with paint
And inset a colored disc
Indicating
the specific bottle size
The star wheel
is designed to run.
They repeat these steps
With the machine's
two other star wheels --
One in the center of the machine
That moves the bottles
under the capping heads
And another that transfers
the bottles
To the machine's exit.
Workers manually assemble
each star wheel.
They verify the pocket size...
Then, on the center
star wheel only,
Bolt a stainless-steel
reinforcement layer
And line the pockets
with a rubber material
That grips bottles.
After installing the metal
support bases on the capper,
They mount
the corresponding star wheels.
The center star wheel and base
have to be made in halves
To fit around
the machine's central shaft.
Workers install
the center guide.
The bottles travel in the path
Between the wheels
and the guide.
Next, workers install
a restraint belt
Made of the same rubber material
That lines the center
star wheel pockets.
The belt and pocket
prevent the bottle
From spinning as the capping
head screws on the cap.
No capper leaves the factory
without a test run.
Before running
the machine normally,
Workers run it
at low speed to check
That the components
are properly aligned
And the movements
correctly timed.
The infeed star wheel
receiving the bottles
Transfers them
to the center star wheel
Under the capping heads.
The capped bottles then transfer
to the discharge star wheel,
Which guides them
to the conveyor belt
Leading to the labeling machine.
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