Near This Location In The 1930's James E. Love And Horace D. Hume Of Garfield, Washington, Invented The Flexible Floating Cutterbar And The Tined Pickup Reel To Harvest Low-Growing, Fragile Crops. These Devices Were Developed For The Local Crops Of Dry Peas And Lentils And Were Then Adopted Nationwide To Soybeans And Other Low-Growing Crops That Tangle And Lodge. These Mechanisms Reduced Dry Pea Harvesting Costs By 28% And Crop Loss From 50 To 10%. These Inventions Were Reported To Save The Equivalent Of 2,750,000 Acres Of Soybeans Annually.
1930
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1993
The Purdue University Airport was the first collegiate owned airport in the United States. It hosted Amelia Earhart for her final adventure, was the training ground for test pilots such a Jimmy Johnson and Ivan Kincheloe, balloonist Malcolm Ross, and astronaut Neil Armstrong. Purdue University Airport and its people and programs pushed aviation’s evolution to new heights and helped expand the frontiers of flight. During WWII, hundreds of U.S. Army and Navy members were trained at the airport.
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Courtesy Wikicommons/SkyHigh757 (CC BY-SA 4.0)
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Part of the Purdue Cirrus training fleet on the ramp
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With the dawn of the automobile age at the beginning of the Twentieth Century, the entire nation started to demand better roads. In the 1910s, motorists and businessmen in Utah became aware of the possibilities of tourism as a business. Soon the state of Utah and the federal government responded with a decades-long program to improve transportation to and within Zion National Park.
Several factors argued for a road through Zion National Park:
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Courtesy Flickr/Ken Lund (CC BY-SA 2.0)
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The spectacular scenery of Zion National Park along the Zion-Mount Carmel Highway, S.R. 9, east of the Zion tunnel.
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When this 1,850-foot concrete-arch highway bridge was built on the White River in a remote region of northern Arkansas - prior to the construction of upriver, flood-control dams - flash floods occurred frequently, sometimes causing the water to rise as much as one foot per hour. Construction under these conditions presented a clear danger, so project managers specified both a design and an innovative construction method appropriate to the problem of building across a perilous stretch of unpredictable river.
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Image Credit:
Courtesy Flickr/jaystout (CC BY 2.0)
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White River Concrete Arch Bridge
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1930
1986
The Salginatobel Bridge, spanning the Salgina Valley ravine, is the earliest surviving three-hinged, hollow box arch bridge designed by Robert Maillart.
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Courtesy Wikipedia/Rama (CC BY-SA 2.0)
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Salginatobel Bridge
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1930
1990
This fusion-welded drum, tested during 1930, was the first in a series tested at Combustion Engineering Inc. that led to the industrial acceptance of welding for the fabrication of boiler drums. Replacing riveting for steam power plants, electric arc fusion welding permitted increased efficiencies through higher working pressures and temperatures and fabrication of larger units of improved safety. Welding was then rapidly extended to fabrication using optimum alloys for pressure vessel and structural application.
Papers published by A. J.
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Image source: Engrailhistory.info
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Fusion-welded Test Boiler Drum
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1930
1980
The Detroit-Windsor Tunnel is a 5,160-foot structure that carries traffic under the Detroit River between Detroit, Michigan and Ontario, Canada. Privately financed, built, and owned, it was completed in 26 months, 10 months ahead of schedule.
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Courtesy Flickr/Brian Rawson-Ketchum (CC BY-SA 2.0)
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Detroit-Windsor Tunnel
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1930
1982
The total length of the Columbia-Wrightsville Bridge is 7,374 feet. Its construction required 100,000 cubic yards of concrete and 8 million pounds of steel reinforcing rods.
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Courtesy Flickr/Gerry Dincher (CC BY-SA 2.0)
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Columbia-Wrightsville Bridge
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1930
1984
The total length of the Columbia-Wrightsville Bridge is 7,374 feet. Its construction required 100,000 cubic yards of concrete and 8 million pounds of steel reinforcing rods.
Consisting of 28 arches, each 185 feet long, the Columbia-Wrightsville Bridge carrying automobile traffic…
The Detroit-Windsor Tunnel is a 5,160-foot structure that carries traffic under the Detroit River between Detroit, Michigan and Ontario, Canada. Privately financed, built, and owned, it was completed in 26 months, 10 months ahead of schedule.
The project's engineer, the firm of…
This fusion-welded drum, tested during 1930, was the first in a series tested at Combustion Engineering Inc. that led to the industrial acceptance of welding for the fabrication of boiler drums. Replacing riveting for steam power plants, electric arc fusion welding permitted increased efficiencies… Read More
The Salginatobel Bridge, spanning the Salgina Valley ravine, is the earliest surviving three-hinged, hollow box arch bridge designed by Robert Maillart.
Maillart's 1901 invention of the concrete hollow box design became a major bridge building concept. In this design, the concrete arch…
Read More
When this 1,850-foot concrete-arch highway bridge was built on the White River in a remote region of northern Arkansas - prior to the construction of upriver, flood-control dams - flash floods occurred frequently, sometimes causing the water to rise as much as one foot per hour. Construction…
Read More
With the dawn of the automobile age at the beginning of the Twentieth Century, the entire nation started to demand better roads. In the 1910s, motorists and businessmen in Utah became aware of the possibilities of tourism as a business. Soon the state of Utah and the federal government responded…
Read More
The Purdue University Airport was the first collegiate owned airport in the United States. It hosted Amelia Earhart for her final adventure, was the training ground for test pilots such a Jimmy Johnson and Ivan Kincheloe, balloonist Malcolm Ross, and astronaut Neil Armstrong.…
Read More
Near This Location In The 1930's James E. Love And Horace D. Hume Of Garfield, Washington, Invented The Flexible Floating Cutterbar And The Tined Pickup Reel To Harvest Low-Growing, Fragile Crops. These Devices Were Developed For The Local Crops Of Dry Peas And Lentils And Were Then…
Read More