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Rubber Tractor Tires
Society: ASABEMain Category: Agricultural & BiologicalSub Category: VehiclesEra: 1920-1929DateCreated: 1926Orange County Historical SocietyOrangeState: VAZip: 22960Country: USAWebsite: https://www.asabe.org/awards-landmarks/asabe-historic-landmarks/rubber-tractor-tires-34.aspxCreator: Pounds, Hoyle, Allis-Chalmers Company, Roorda, Hessel

Early tractors were massive and expensive. Their steel lug wheels gave poor traction and a rough ride. Lugs were prohibited on many roads. 1926 Hoyle Pounds modified a Fordson tractor with zero pressure truck tires on special rims to improve performance on sandy soils in Winter Garden, FL.

A successful business resulted. In 1929 Hessel Roorda equipped Farmall tractors with low pressure rubber tires to pick corn in muddy fields near Rock Valley, IA. Farmers found they performed well in all conditions.

YearAdded:
1995
Image Caption: A modern rubber tractor tire
Entrance to NASA's Langley Research Center in Virginia, United States.
Era: 1910-1919DateCreated: 1917Langley Research CenterHamptonState: VACountry: USAWebsite: https://www.aiaa.org/SecondaryTwoColumn.aspx?id=15032386787Creator: NASA

The Langley Memorial Aeronautical Laboratory, now the core of the Langley Research Center, was a unique facility that served as the nexus of aerodynamic research in the U.S. from its beginning in 1917 to its transformation into NASA’s Langley Research Center in 1958. It achieved world renown for its variety of specialized research tools and its staff’s emphasis on practical solutions to the problems of flight.

 

YearAdded:
2001
Image Caption: Entrance to NASA's Langley Research Center in Virginia, United States.
Jamestown
Society: ACSMain Category: ChemicalSub Category: Cradles of ChemistryEra: 1600sHistoric Jamestown SettlementWilliamsburgState: VACountry: USAWebsite: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/jamestownchemistry.html, https://www.acs.org/content/dam/acsorg/education/whatischemistry/landmarks/jamestownchemistry/chemistry-at-jamestown-commemorative-booklet.pdf

Recent archaeological evidence reveals early Virginia, which included both the Roanoke and Jamestown colonies, as the birthplace of the American chemical enterprise. Chemical processes first applied experimentally at Roanoke were re-introduced at Jamestown twenty years later.

YearAdded:
2007
Image Credit: Courtesy Flickr/bootbearwdc (CC BY 2.0)Image Caption: Housing within James Fort at Jamestown settlement, Virginia
Society: ASMEMain Category: Aerospace & AviationSub Category: Air and Space TransportationEra: 1950-1959DateCreated: 1954Steven F. Udvar-Hazy CenterChantillyState: VAZip: 20151Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/air-and-space-transportation/-178-boeing-367-80-%281954%29-, http://files.asme.org/asmeorg/Communities/History/Landmarks/5506.pdfCreator: Boeing
The 367-80 is the prototype for most jet transports. Its success was due largely to its mechanical systems, including turbine engines with thrust reversers and noise suppressors, redundant hydraulic control systems, and an improved cabin-pressurization system. Honeycomb flap panels were introduced, along with a strong, lightweight structural design that controlled fatigue cracking. These led to several innovations in aircraft tooling and manufacturing techniques. The Dash-80 was the first commercial airliner economical enough to take the US airline industry off subsidy.
YearAdded:
1994
Image Credit: Courtesy Wikipedia/Boeing Dreamscape (CC BY 2.0)Image Caption: Prototype of the Boeing 707 and most jet transport systems, the Boeing 367-80 established economic feasibility of commercial air travel.Era_date_from: 1954
McCormick Reaper
Society: ASABEMain Category: Agricultural & BiologicalSub Category: Equipment, Harvesting and BalingEra: 1830-1839DateCreated: 1831McCormick FarmRaphineState: VAZip: 24472Country: USAWebsite: http://www.asabe.org/awards-landmarks/asabe-historic-landmarks/mccormick-reaper-4.aspxCreator: McCormick, Cyrus Hall

McCormick was born on the 620-acre farm known historically as “Walnut Grove Farm” in 1809.  He built the first practical grain reaper, which was successfully demonstrated in a field of oats owned by John Steele in nearby Steeles Tavern in 1831.  

YearAdded:
1972
Image Credit: Courtesy of the Shenandoah Valley Agricultural Research and Extension Center.Image Caption: The McCormick reaper was first demonstrated at the Walnut Grove Farm in Virginia.Era_date_from: 1831
Blue Ridge Parkway
Society: ASCEMain Category: CivilSub Category: Roads & RailsEra: 1930-1939DateCreated: 1935-1937Blue Ridge MountainsState: VACountry: USAWebsite: http://www.asce.org/Project/Blue-Ridge-Parkway/

Designed to connect the Shenandoah National Park in Virginia and the Great Smokey Mountains National Park in North Carolina, the Blue Ridge Parkway was planned to provide pleasant motoring and to conserve and interpret the unique natural and cultural resources of the Southern Highlands. It was conceived also as a public works project to relieve unemployment in the Appalachian region during the Great Depression.

YearAdded:
1999
Image Credit: Courtesy Flickr/thewebprincess (CC BY-ND 2.0) Image Caption: A stunning view from an outlook on the Blue Ridge Parkway, which is famous for its beautyEra_date_from: 1935
Potowmack Canal and Locks
Society: ASCEMain Category: CivilSub Category: Water TransportationEra: 1750-1799DateCreated: 1799Great Falls ParkFairfax CountyState: VACountry: USAWebsite: http://www.asce.org/Project/Potowmack-Canal-and-Locks/Creator: Washington, George, Potowmack Canal Company

These canals and locks are a part of the first extensive system of canal and river navigation works undertaken in the United States. The idea for the canal was proposed by George Washington, when, as an engineer, surveyor and military emissary for Virginia, he saw the need for a trade route west beyond the Allegheny Mountains. In order to do create this route, it was necessary to try to tame the Potomac River which was a wild, unruly stream which only the hardiest of rivermen ever attempted.

YearAdded:
1970
Image Credit: Courtesy Flickr/Rudi Riet (CC BY-SA 2.0)Image Caption: Potowmack Canal and LocksEra_date_from: 1799
Society: ASMEMain Category: MechanicalSub Category: ManufacturingEra: 1800-1829DateCreated: 1807New River Trail State ParkAustinvilleState: VAZip: 24312Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/manufacturing---1/-63-jackson-ferry-shot-tower-%281807%29Creator: Jackson, Thomas , Watts, William
This facility was typical of others in the country that made small spherical lead shot for the fowling pieces of frontier settlers. Smelted lead from the nearby Austinville mines was melted at the top of the tower and poured through a sizing sieve to produce small droplets. Surface tension caused the molted lead to assume a spherical shape that solidified during its 150-foot fall. The shot was then collected in a water-filled kettle at the bottom of the shaft. The "drop process" was patented in England in 1769 by William Watts, a craftsman of Bristol, England.
YearAdded:
1981
Image Credit: Courtesy Wikipedia/Dr00bie (CC BY-SA 3.0)Image Caption: Jackson Ferry Shot TowerEra_date_from: 1807
Society: ASCEMain Category: CivilSub Category: Water TransportationEra: 1830-1839DateCreated: 1834Rennshaw StreetPortsmouthState: VAZip: 23704Country: USAWebsite: http://www.asce.org/People-and-Projects/Projects/Landmarks/Naval-Drydocks-at-Boston-and-Norfolk/Creator: Baldwin, Loammi
Baldwin's dry dock in Virginia has been designated a National Historical Landmark and is still in use at the Norfolk Naval Shipyard. The Charlestown dry dock and original pump house, while no longer used, are on display as part of the Boston National Historical Park. Although the need for dry-docking facilities to speed the cleaning and repair of ships in America's naval fleet was apparent as early as 1789, it was the War of 1812, and the burning of Washington, D.C., that finally convinced Congress of the importance of a coastal defense system based on a strong navy.
YearAdded:
1977
Image Credit: Public Domain (National Park Service)Image Caption: Gosport Naval Dry DocksEra_date_from: 1834
Dismal Swamp Canal
Society: ASCEMain Category: CivilSub Category: Water TransportationEra: 1800-1829DateCreated: 1805ChesapeakeState: VACountry: USAWebsite: http://www.asce.org/Project/Dismal-Swamp-Canal/Creator: Dismal Swamp Canal Co., U.S. Army Corps of Engineers

The Dismal Swamp Canal was created as a 22-mile waterway, extending from Deep Creek, Virginia to South Mills, North Carolina. The canal enabled North Carolina producers of building and agricultural products to deliver goods to the Port of Norfolk where they were transferred to ocean-going vessels.   

YearAdded:
1987
Image Credit: Photo by Edwin S. Grosvenor (CC BY 2.0)Image Caption: Dismal Swamp CanalEra_date_from: 1805
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