Conceived in the early years of World War II as a plan to bury four fuel containers horizontally in a hillside at the U.S. Navy facility at Pearl Harbor, Hawaii, the Red Hill Underground Fuel Storage Facility ultimately encompassed the design and construction of 20 vertical storage tanks - each large enough to contain a 20-story building - buried in the volcanic hillside and connected by tunnels to a harbor-side pumping station more than two-and-a-half miles away.
Hawaii
YearAdded:
Image Credit: Courtesy Wikicommons/Leslie Nelson (CC BY-SA 4.0)Image Caption: Above-ground fuel storage tanks at Pearl Harbor prior to the construction of Red Hill.Era_date_from: 1943
1994
The Kamehameha V Post Office is the oldest surviving public building in the U.S. constructed with reinforced concrete. The success of this early structure helped establish the value of reinforced concrete as a durable construction material.
YearAdded:
Image Credit: Public Domain (Author's Choice)Image Caption: Kamehameha V Post OfficeEra_date_from: 1871
1987
Commercial pineapple production began in Hawaii about 1890. Fruit was hand-peeled and sliced to match can sizes for export. In 1911 James D. Dole hired Henry G. Ginaca to design a machine to automate the process. As fruit dropped through the Ginaca machine, a cylinder was cut to proper diameter, trimmed top and bottom, and cored. This machine more than tripled production, making pineapple Hawaii's second largest crop.
YearAdded:
Image Credit: Public Domain (United States Patent)Image Caption: Ginaca Pineapple Processing MachineEra_date_from: 1911
1993
Innovations
Commercial pineapple production began in Hawaii about 1890. Fruit was hand-peeled and sliced to match can sizes for export. In 1911 James D. Dole hired Henry G. Ginaca to design a machine to automate the process. As fruit dropped through the Ginaca machine, a cylinder was cut to proper diameter,… Read More
The Kamehameha V Post Office is the oldest surviving public building in the U.S. constructed with reinforced concrete. The success of this early structure helped establish the value of reinforced concrete as a durable construction material.
Brickmaker J.G. Osborne was chosen…
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Conceived in the early years of World War II as a plan to bury four fuel containers horizontally in a hillside at the U.S. Navy facility at Pearl Harbor, Hawaii, the Red Hill Underground Fuel Storage Facility ultimately encompassed the design and construction of 20 vertical storage tanks - each…
Read More