Pieces of polished steel are smeared with oil to reduce friction and are viewed under a microscope in the United States.
United States USA Date:1923 Duration:4 min 4 sec Sound:NO SOUND
The world struggle for oil is depicted. Use of components of oil in railroads in the United States is depicted. A man rubs two pieces of steel together. Another man stands near him. The first man looks at the pieces of steel through a microscope. The rough edge of polished steel as seen under a microscope. Two pieces of polished steel on the stage of the microscope. Rough edges of the polished steel pieces as seen under the microscope. The man takes out oil from a bottle using a pipette. The oil is applied between the edges of the steel pieces to reduce friction. A view of oil smeared edges as seen through the microscope. A man operates machinery in a railway locomotive.
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