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Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Engineer Ernest Milov and Bob Dale checking electrical circuits on a rotary take-up control panel.

Engineer Ernest Milov and Bob Dale checking electrical circuits on a r...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 8, 1994.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Engineer Ernest Milov and electrician Bob Dale check circuits on the service panel of the rotary take-up machine.

Engineer Ernest Milov and electrician Bob Dale check circuits on the s...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 8, 1994.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Bob Dale and Jim McComiskey checking circuits on the planetary strander control board.

Bob Dale and Jim McComiskey checking circuits on the planetary strande...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 6, 1994.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Civilian defense. Fire prevention. Fires caused by faulty electrical wiring and the misuse of electrical equipment cost the United States 26 million dollars last year. A total of 55,000 fires were started by overheated irons, defective lamp cords, overloaded and improperly fused circuits, and other faults in the use or construction of electrical equipment

Civilian defense. Fire prevention. Fires caused by faulty electrical w...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Electrical engineer Ernest Milov installing a laptop computer into the take-up panel to evaluate the circuits.

Electrical engineer Ernest Milov installing a laptop computer into the...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 8, 1994.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Army demonstration of new telephone and teletype systems. Washington, D.C., Feb. 25. Utilizing two recent developments in electrical communication. the Army today demonstrated its ability to communicate instantaneously between its Washington Headquarters and its various units in different parts of the country. the test consisted of a long distance telephone conference call over circuits normally employed for commercial telephone service. The hookup interconnected general staff officers in Washington with commanders of the Nine-Corp areas in their respective headquarters at New York, Atlanta, Chicago, Boston, Baltimore, Columbus, Omaha, San Antonio, and San Francisco. Left to right: Col. Robert Eichelberger, Sec. To the General Staff; Chief of Staff General Malin Craig; and the Chief Signal Officer General J.O. Mauborgne, 2/25/38

Army demonstration of new telephone and teletype systems. Washington, ...

A group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Great Falls, Montana. Electrolytic copper refinery of Anaconda Copper Mining Company. Inspecting the electolytic process. By means of this tool which is thrust down and towards the inspector he is able to detemine if deposition of copper is proceeding at the normal rate and if there are any short circuits present

Great Falls, Montana. Electrolytic copper refinery of Anaconda Copper ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Electrical engineer Ernest Milov installing a laptop computer into the take-up panel to evaluate the circuits.

Electrical engineer Ernest Milov installing a laptop computer into the...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 8, 1994.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining Company. Inspecting the electrolytic process. By means of this tool which is thrust down and towards the inspector he is able to determine if deposition of copper is proceeding at the normal rate and if there are any short circuits present

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining ...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Washington, D.C. The U.S. Weather Bureau station at the National Airport. The Civil Aeronautics Communication station where observations and weather forecasts from all sections of the country are received and transmitted over land line teletype circuits

Washington, D.C. The U.S. Weather Bureau station at the National Airpo...

Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Great Falls, Montana. Electolytic copper refinery of Anaconda Copper Mining Company. Inspecting the electrolytic process; by means of this tool which is thrust down and towards the inspector he is able to determine if deposition of copper is proceeding at the normal rage and if there are any short circuits

Great Falls, Montana. Electolytic copper refinery of Anaconda Copper M...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining Company. Inspecting the electrolytic process. By means of this tool which is thrust down and towards the inspector he is able to determine if deposition of copper is proceeding at the normal rate and if there are any short circuits present

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining ...

Picryl description: Public domain image of a mine, mining, free to use, no copyright restrictions.

Washington, D.C. The U.S. Weather Bureau station at the National Airport. The Civil Aeronautics Communication station where observations and weather forecasts from all sections of the country are received and transmitted over land line teletype circuits

Washington, D.C. The U.S. Weather Bureau station at the National Airpo...

Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More

Engineer Ernest Milov and electrician Bob Dale check circuits on the service panel of the rotary take-up machine.

Engineer Ernest Milov and electrician Bob Dale check circuits on the s...

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 8, 1994.

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining Company. Inspecting the electrolytic process. By means of this tool which is thrust down and towards the inspector he is able to determine if deposition of copper is proceeding at the normal rate and if there are any short circuits present

Great Falls, Montana. Electrolytic refinery of Anaconda Copper Mining ...

Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County, NV

Hoover Dam, Circuits 1-15, U.S. Highway 93, Boulder City, Clark County...

Significance: Transformer Circuits are integral elements of the Hoover Dam electrical generation and transmission system. The circuits contributed to the importance of Hoover Dam power in the WWII and post-war ... More