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2. USS Mount Hood (AE-11) - Wikipedia

   en.wikipedia.org/wiki/USS_Mount_Hood_(AE-11)

   Marco Polo was a cargo ship built under a US Maritime Commission contract (as MC hull 1356), by the North Carolina Shipbuilding Co., Wilmington, North Carolina.. The ship was renamed Mount Hood on 10 November 1943; launched on 28 November 1943; sponsored by Mrs. A. J. Reynolds; acquired by the Navy on loan-charter basis on 28 January 1944; converted by the Norfolk Shipbuilding & Dry Dock Co ...

3. Safety lamp - Wikipedia

   en.wikipedia.org/wiki/Safety_lamp

   The Sussmann lamp [58] was introduced into Britain in 1893 and following trials at Murton Colliery in Durham it became a widely used electric lamp with 3000 or so reported by the company in use in 1900 [59] However, by 1910 there were only 2055 electric lamps of all types in use – about 0.25% of all safety lamps. [60]

4. USS Mount Hood (AE-29) - Wikipedia

   en.wikipedia.org/wiki/USS_Mount_Hood_(AE-29)

   She was the second Navy munitions ship to be named after Mount Hood, a volcano in the Cascade Range in Oregon. Mount Hood was laid down 8 May 1967 by Bethlehem Steel Corporation, Sparrows Point, Maryland ; launched 17 July 1968; sponsored by Mrs. Robert A. Frosch, wife of the Assistant Secretary of the Navy for Research and Development; and ...

5. Electrical equipment in hazardous areas - Wikipedia

   en.wikipedia.org/wiki/Electrical_equipment_in...

   Explosion-proofing designs equipment to contain ignition hazards, prevent entry of hazardous substances, and, contain any fire or explosion that could occur. Different countries have approached the standardization and testing of equipment for hazardous areas in different ways. Terminology for both hazards and protective measures can vary.

6. Headlamp (outdoor) - Wikipedia

   en.wikipedia.org/wiki/Headlamp_(outdoor)

   These lamps consisted of an incandescent lamp with a reflector, and a belt-mounted wet-cell storage battery [citation needed] sized to power the lamp for the entire working shift. [citation needed] After 12 hours a 1917-era miner's lamp produced less than one candlepower and about 2 to 5 total lumens. [3] This pattern became popular for similar ...

7. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   HID lamps are typically used when high levels of light over large areas are required, and when energy efficiency and/or light intensity are desired. These areas include gymnasiums, large public areas, warehouses, movie theatres, football stadiums, [9] outdoor activity areas, roadways, parking lots, and pathways. More recently, HID lamps have ...