Precise machining operations, in the United States, for military needs in World War 2
United States USA Date:1942 Duration:3 min 10 sec Sound:NO SOUND
Man turns a huge cylindrical specimen on a lathe. Chips and sparks seen flying from the tool bit as machining progresses. Views of a milling machine in operation. Sparks seen as tool bit moves over surface of specimen. Smooth shiny surface appears in wake of tool movement. A man and a woman work in a laboratory. They wear aprons. A meter gives reading of electric current in amperes. A woman works on a measuring instrument. The woman looks through an optical device of the instrument. A United States Army Colonel holds a heavy, smoothly machined, block of metal and talks to two other men about it.
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