Refine Your Search

Ohio-State-football stock footage and images

- Showing 22597 to 22602 of 24494 results
Early electric lighting and electric locomotive in the mining industry

Photo of a miner digging and words above him read “Provide safe lighting and economical hauling for mining operations”. A young miner shows off his uniform and lighting headgear powered by an Edison battery. Battery powered electric locomotive pulling ore carts emerges from mine tunnel.

Location: United States USA
Date: 1926
Duration: 30 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: None
Clip: 65675080174
Animated diagrams show how energy is stored and discharged in Edison storage batteries

How Edison batteries function. The are also known as nickel-iron battery or NiFe batteries. An animated diagram shows how nickel iron alkaline storage batteries such as Edison batteries store and generate energy. The diagram shows the battery, generator, switch, motor, and a light bulb. An early nickel-iron Edison battery in wooden box. A later version of the nickel-iron battery invented by Thomas A. Edison in 1909. Pie chart showing the market share of Edison batteries over other portable batteries in 1926. Photograph of German-born American mathematician and electrical engineer Dr. Charles Proteus Steinmetz, "The Wizard of Schenectady". Slate bearing a commentary on from Dr. Steinmetz claiming "complete reversibility" of the Edison battery reaction. Diagram shows the reversible cycle of a portable battery. Animation in the diagram shows how energy is stored in the battery- the oxygen contained in the negative plate is forced to the positive plate by the charging current. The animation demonstrates the discharge of the battery. Plates from used Edison batteries show little decay after years of use.

Location: United States USA
Date: 1926
Duration: 3 min 29 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: None
Clip: 65675080177
President Kennedy awarded honorary at George Washington University

President John F. Kennedy accepts an honorary Doctor of Laws degree from George Washington University President Thomas H. Carroll. Audience gathered at GW University Yard applauds.

Location: United States USA
Date: 1961, May 3
Duration: 5 sec
Sound: No
Color: Monochrome
Clip Type: Unedited
Language: None
Clip: 65675080234
Hippies playing rock and roll Beat music; Hippies play drums in commune.

Psychedelic lights. Band of rock musicians performing Beat music on stage. A pair of guitarists and a female drummer. Hippies sitting in a room at a commune playing bongo drums. A young child drinks from a cup. Hippies playing with pet dogs. A psychedelic mandala hangs on the wall behind a hippie.

Location: United States USA
Date: 1969
Duration: 1 min 4 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675080245
Copper ore being poured into piles and transported to furnace bins

Unloading concentrates at a smelter. A crane scoops copper concentrate from wagons. Copper ore mixed by spreading each lot as received upon large “ore beds”. Copper ore pouring into piles. Large piles of copper ore in factory. An ore-loader plows a section of ore from the bed onto a belt, which conveys the ore to the furnace bins. Conveyer belt transports copper ores to bins. Blast furnaces smelting course copper ores. Copper matte flow from a blast furnace settler.

Location: United States USA
Date: 1927
Duration: 2 min 7 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: None
Clip: 65675080309
Roasting copper ore and treatment of copper matte at a smelting factory

Roasting copper ore to get rid of excess sulfur inside a roasting furnace. A reverberatory furnace smelting fine copper ore and concentrates from mills. A flame smelting copper ore on large, enclosed hearth. A man tapping slag from a reverberatory furnace. Slag flowing into slag-pots in a tunnel beneath factory floor. Conveyer belt hauling away slag-pots to a slag dump. View of a slag dump. Copper matte being tapped from the other end of the reverberatory. Smoke rises from hot copper matte being poured into a furnace. Copper matte being treated further in a tilting furnace called a convertor.

Location: United States USA
Date: 1927
Duration: 2 min 34 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: None
Clip: 65675080310
<< Previous | Page: 1 ... 3767 3768 3769 ... 4083 | Next >>