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Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chestnut Hill Reservoir, looking west.

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" o...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

A pile of concrete pipes stacked on top of each other. Concrete the design of the tube.

A pile of concrete pipes stacked on top of each other. Concrete the de...

Visual patterns: A stack of concrete pipes sitting on top of each other / A stack of concrete pipes stacked on top of each other - public domain stock photo.

Kensico reservoir. General view of Kensico dam and reservoir with pool and fountain below dam. Lower Effluent chamber in background. Contract 9. October 25, 1917.

Kensico reservoir. General view of Kensico dam and reservoir with poo...

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description

Released. ACOE photographer Norris Jones of U.S. Army Corps of Engineers (USACE). LT. COL. Jamie Gayton, 2nd Brigade, 3rd Infantry Division, Brigade Troops Battalion Commander, looks over a huge aerator Aug. 5 at Iraq's largest sewage treatment facility at Rustamiyah which recently went through an extensive renovation. That facility is treating 100 percent of all effluent coming from the 2 million residents of Sadr City and is capable of handling 470,000 cubic meters per day (86,000 gallons per minute). (ACOE photo by Norris Jones)

Released. ACOE photographer Norris Jones of U.S. Army Corps of Enginee...

The original finding aid described this photograph as: Subject Operation/Series: IRAQI FREEDOM Base: Baghdad Country: Iraq (IRQ) Scene Major Command Shown: USACE Scene Camera Operator: Norris Jones, CIV, U... More

Aerial view of Gasdynamics facility in 1964 and the 20 inch helium tunnel Part of the Thermal Protection Laboratory used to research materials for heat shield applications and for aerodynamic heating and materials studies of vehicles in planetary atmospheres.  This laboratory is comprised of five separate facilities: an Aerodynamic Heating Tunnel, a Heat Transfer Tunnel, two Supersonic Turbulent Ducts, and a High-Power CO2 Gasdynamic Laser. All these facilities are driven by arc-heaters, with the exception of the large, combustion-type laser. The arc-heated facilities are powered by a 20 Megawatt DC power supply. Their effluent gas stream (test gases; Air, N2, He, CO2 and mixtures; flow rates from 0.05 to 5.0 lbs/sec) discharges into a five-stage stream-ejector-driven vacuum system. The vacuum system and power supply are common to the test faciities in building N-238. All of the facilities have high pressure water available at flow rates up to 4, 000 gals/min. The data obtained from these facilities are recorded on magnetic tape or oscillographs. All forms of data can be handled whether from thermo-couples, pressure cells, pyrometers, or radiometers, etc. in addition, closed circuit T. V. monitors and various film cameras are available. (operational since 1962) ARC-1964-A-33038-22

Aerial view of Gasdynamics facility in 1964 and the 20 inch helium tun...

Aerial view of Gasdynamics facility in 1964 and the 20 inch helium tunnel Part of the Thermal Protection Laboratory used to research materials for heat shield applications and for aerodynamic heating and materi... More

Connection of the Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chstnut Hill Reservoir, looking east. Oct. 31, 1877.

Connection of the Sudbury River pipeline with 48" outer pipe at efflue...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south. Oct. 31, 1877.

View of gates on Sudbury River pipeline below effluent gate house, Che...

Picryl description: Public domain image related to an industrial revolution, industry history, factory building, free to use, no copyright restrictions image.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent ...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chestnut Hill Reservoir, looking west.

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" o...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

A black and white photo of a wave in the water. Background texture design, backgrounds textures.

A black and white photo of a wave in the water. Background texture des...

Water: Free images of reflections in the water, available for commercial use and free download. Copyright-free, no attribution required.

Connection of the Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chstnut Hill Reservoir, looking east. Oct. 31, 1877.

Connection of the Sudbury River pipeline with 48" outer pipe at efflue...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chestnut Hill Reservoir, looking west.

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" o...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Connection of the Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chstnut Hill Reservoir, looking east. Oct. 31, 1877.

Connection of the Sudbury River pipeline with 48" outer pipe at efflue...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Connection of the Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chstnut Hill Reservoir, looking east. Oct. 31, 1877.

Connection of the Sudbury River pipeline with 48" outer pipe at efflue...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More

View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south. Oct. 31, 1877.

View of gates on Sudbury River pipeline below effluent gate house, Che...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south. Oct. 31, 1877.

View of gates on Sudbury River pipeline below effluent gate house, Che...

Picryl description: Public domain image related to an industrial revolution, industry history, factory building, free to use, no copyright restrictions image.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent ...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" outer pipe at effluent gate house, of Chestnut Hill Reservoir, looking west.

Oct. 31, 1877. View of connection of Sudbury River pipeline with 48" o...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent ...

Public domain scan of the back of stereograph card, stereoscopic view, 19th century, free to use, no copyright restrictions - Picryl description

Santa Cruz River - National Parks Gallery

Santa Cruz River - National Parks Gallery

Surface flow on the Santa Cruz gave rise to productive agricultural communities going back thousands of years before the Spanish arrived. These successful settlements, many of which transformed into mission com... More

View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south. Oct. 31, 1877.

View of gates on Sudbury River pipeline below effluent gate house, Che...

Picryl description: Public domain image of the back of stereograph card, stereoscopic view, free to use, no copyright restrictions

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent gate house, Chestnut Hill Reservoir, looking south.

Oct. 31, 1877. View of gates on Sudbury River pipeline below effluent ...

Boston Massachusetts stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yo... More