International pencil
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Transcript of International pencil
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How many people does it take to makean ordinary wooden pencil?
EBERHARD FABERMONGOL482
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Cedar trees are used because their grain is very straight.
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Lumber jacks in Oregon and northern California cut down cedar trees.
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The logs are loaded onto trucks ...
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… and delivered to a mill in
San Leandro California.
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Trucks run on diesel fuel.
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Where do we get the crude oil needed to make diesel gas?
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Much of the oil imported into
the U.S. comes from OPEC
countries like Saudi Arabia
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At the mill in San Leandro, the logs are cut into rectangular blocks called slats. Each
slat is 7 inches (17.78 centimeters) long and 3 inches (7.62 centimeters) wide, and
one-quarter inch (0.63 centimeters) thick -- half the thickness of a pencil.
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The slats are shipped by rail to a factory in Wilkes-Barre Pennsylvania.
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When they arrive at the factory, a machine cuts nine grooves
into one side of each slat.
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EBERHARD FABERMONGOL482
Pencil
Factory
At the factory, resources from around the world are combined to make a pencil.
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The “lead” used in pencils is a mixture ofgraphite, clay, and gums.
EBERHARD FABERMONGOL482
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Graphite is mined in Sri Lanka
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… is loaded on a ship in a paper sack ...
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… and is shipped to the United States.
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Workers in Japan built
the ship that carries the graphite to the U.S.
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The ship is registered in Liberia.
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The ship is owned by a French-Dutch joint venture.
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Candelilla wax from Mexico is added to make the pencil lead smooth and strong.
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The graphite and candelilla wax are thenmixed with clay from Mississippi to make
the lead in the pencil.
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A machine puts this mixture of graphite, clay and wax into the grooves of a slat.
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Then two slats are glued together to make a “pencil sandwich”.
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Nine pencils are carved out of each pencil sandwich.
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EBERHARD FABERMONGOL482
Each pencil then receives several coats of lacquer.
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Castor oil is one of the main ingredients of lacquer. Farmers in tropical Africa
grow castor beans
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EBERHARD FABERMONGOL482
The black lettering on a pencil is a combination of carbon black and resins.
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A plant in Borger, Texas, makes carbon black.
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The piece of metal that holds the eraser iscalled the ferrule. It is made of brass, which
is a combination of zinc and copper.
Two thirds of the world’s reserves of zinc are inthe U.S., Canada, Australia, the Former Soviet
Union, and Ireland.
EBERHARD FABERMONGOL482
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Sources of copper include Bolivia, Chile, and Zambia
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The plug, or eraser, is a combination of many different ingredients including
pumice from Italy.
EBERHARD FABER MONGOL 482
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The substance that erases is the result of a chemical reaction betweensulfur chloride and the oil from a seed
grown in Indonesia.
EBERHARD FABER MONGOL 482
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How many people participate in the productionof a pencil? Far more than anyone wouldsuspect. And only a few of those involved evenknow that a pencil is the end result of their labor. Through specialization, people fromaround the world contribute to the end product.Without even knowing it, they interact with each other indirectly. How much does this pencilcost? Less than a quarter -- far less than if any single person tried to produce it with no one else’s help. The international pencil is a bargain.
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People from around the world are involved in making a pencil.
EBERHARD FABER MONGOL 482