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1941

Grand Coulee Dam
Society: ASCEMain Category: CivilSub Category: DamsEra: 1940-1949DateCreated: 1941Columbia RiverGrand CouleeState: WAZip: 99133Country: USAWebsite: http://www.asce.org/Project/Grand-Coulee-Dam/Creator: Bureau of Reclamation

The massive Grand Coulee Dam, on the Columbia River, is the largest concrete structure in the U.S., the largest hydroelectric facility in the U.S., and the sixth-largest hydroelectric facility in the world. It provides irrigation for up to 1.1 million acres of agricultural lands and the hydroelectric complex maintains a generating capacity of 6.8 million kilowatts. It also serves as the primary flood control for the Columbia River basin (with a capacity of 5.18 million acre-feet of water) and provides recreational opportunities on the 150-mile-long Franklin D. Roosevelt Lake.

YearAdded:
1997
Image Credit: Courtesy Flickr; //lucylu (CC BY-ND 2.0)Image Caption: Grand Coulee DamEra_date_from: 1941
Norfolk & Western #611, Class J Steam Locomotive
Society: ASMEMain Category: MechanicalSub Category: Rail TransportationEra: 1940-1949DateCreated: 1941Virginia Museum of TransportationRoanokeState: VAZip: 24016Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/rail-transportation---1/-94-norfolk---western--611,-class-j-steam-locomoti, http://files.asme.org/ASMEORG/Communities/History/Landmarks/5609.pdfCreator: Norfolk & Western

Developed for use in both the plains and mountains, this coal-fired passenger locomotive was among the most advanced in design, construction, and performance of any 4-8-4. Designed by Norfolk & Western engineers and built in the Norfolk & Western Roanoke shops, the 611 was specially balanced to minimize rail damage at high speeds. No. 611, eleventh of fourteen constructed and the last survivor, was retired from service and donated to the Roanoke Transportation Museum in 1959.

YearAdded:
1984
Image Credit: Public Domain (National Park Service)Image Caption: Norfolk & Western #611, Class J Steam LocomotiveEra_date_from: 1941
Development of Diagnostic Test Strips
Society: ACSMain Category: ChemicalSub Category: MedicalEra: 1940sDateCreated: 1941ETHOS Science CenterElkhartState: INCountry: USAWebsite: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/diagnosticteststrips.html, https://www.acs.org/content/dam/acsorg/education/whatischemistry/landmarks/diagnosticteststrips/development-of-diagnostic-test-strips-commemorative-booklet.pdfCreator: Free, Al, Free, Helen

It is difficult to recall a time when doctors and patients had trouble tracking the presence of glucose and other substances in urine and blood. Lack of sufficient measurement tools made it difficult to manage a host of diseases, including diabetes as well as other metabolic diseases and kidney and liver conditions. Today, self-management of these diseases is an easier process because of the development of diagnostic test strips by Alfred and Helen Free and their research team at Miles Laboratories.

 

The text of the plaque commemorating the development reads:

YearAdded:
2010
Image Caption: Advert for Ames home urine testing kit
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