As much as we know today about the planets of the solar system, it’s almost incomprehensible that a mere 50 years ago we knew almost nothing about them. Observations of even Mars and Venus, Earth’s closest planetary neighbors, through Earth-based telescopes had provided only the most rudimentary information on their physical characteristics and essentially no information on the chemical properties of the planets and their atmospheres.
USA
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Image Caption: Mariner 6 and 7
2017
Charles David Keeling of Scripps Institution of Oceanography was the leading authority in establishing the global atmospheric carbon dioxide (CO2) record. In 1958, Keeling began measuring atmospheric CO2 concentrations from Hawaii’s Mauna Loa Observatory. Using rigorous analytical procedures, he revealed new information about natural and man-caused carbon trends.
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Image Credit: Courtesy Wikicommons/Scrippsnews (CC BY-SA 4.0)Image Caption: The Keeling Curve, December 2014
2015
Frozen foods have become a staple of the modern diet. Freezing allows consumers to have access to foods previously unavailable or available only seasonally, and it provides convenience for many families. But frozen foods became commonplace only after World War II, in part due to research conducted at the Western Regional Research Center which helped determine the proper time and temperature at which various foods should be frozen to insure their quality and stability.
The plaque commemorating the research reads:
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Image Credit: Courtesy USDA/Scott Bauer (CC BY 2.0)Image Caption: Examples of frozen foods
2002
Instant mashed potatoes are commonplace on grocery shelves and have found wide use institutionally and in domestic and international food aid programs. The most successful form of instant mashed potatoes resulted from the flake process developed in the 1950s and 1960s at the Eastern Regional Research Center, a United States Department of Agriculture facility outside of Philadelphia. The process for reconstituting instant mashed potatoes devised at this facility utilized dehydration technology.
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Image Caption: Dehydrated shredded potatoes
2007
Era: 1940sDateCreated: 1942Baton Rouge RefineryBaton RougeState: LACountry: USAWebsite: https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/fluidbedreactor.htmlCreator: Standard Oil Corporation of New Jersey [now Exxon Corporation]
The first commercial circulating fluid bed reactor, PCLA #1 (Powdered Catalyst Louisiana), went on stream on May 25, 1942, in the Baton Rouge Refinery of the Standard Oil Company of New Jersey (now ExxonMobil Corporation). This first use of powdered catalysts in continuous operation allowed the efficient cracking of heavy gas oils to meet the growing demand for high-octane fuels. Today, fluid bed reactors are in use worldwide for the manufacture of fuels, chemical intermediates and plastics.
The plaque commemorating the development reads:
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Image Credit: Courtesy ACS/Keith LindblomImage Caption: National Historic Chemical Landmark plaque installed at the site of the PCLA #1 at ExxonMobil’s Baton Rouge Refinery.1998
Flavor—encompassing both aroma and taste—provides the defining characteristic of how we experience food. Flavor has long been an enigma to scientists: Aristotle described two categories of taste, sweet and bitter. Today we recognize five basic tastes in food: sweetness, saltiness, sourness, bitterness and umami (savory). But what are the scientific components of flavor, and how can flavor be studied, quantified and replicated?
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Image Credit: Photo by USDA-ARImage Caption: Roy Teranishi samples the headspace over fresh grapes before injecting a sample into a gas chromatograph.
2013
The story is so improbable it defies belief: a soil sample from Japan stops suffering in Africa. It starts when a scientist discovers a lowly bacterium near a golf course outside Tokyo. A team of scientists in the United States finds that the bacterium produces compounds that impede the activity of nematode worms. It is developed into a drug that wards off parasites in countless pets and farm animals, averting billions of dollars in losses worldwide.
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Image Credit: Courtesy Wikicommons/현태웅 (CC BY-SA 4.0)Image Caption: A young man affected by onchocerciasis - river blindness
2016
Long before Texas gushers and offshore drilling, and a century before oil wells dotted Arabian sands and rose out of Venezuelan waters, the center of petroleum production was western Pennsylvania. In the middle of the 19thcentury two developments occurred that guaranteed Pennsylvania’s dominance: The construction, in Pittsburgh, of the first still to refine crude oil into kerosene for use in lighting, and the drilling of the first oil well in Titusville, Pennsylvania.
DayGlo fluorescent pigments, a new class of pigments based on fluorescent dyes and polymeric materials, were developed between the 1930s and 1950s by scientists at Switzer Brothers, Inc. (now Day-Glo Color Corp.). These pigments absorb various light frequencies (visible and invisible to the human eye) and reemit them, producing intense visible colors that appear to glow, even in daylight.
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Image Caption: Signs are one common use for DayGlo fluorescent pigments.
2012
By the 1950s, synthetic fabrics - often wrinkle resistant and flame retardant - began to overtake cotton as the dominant U.S. textile fiber. To reverse this trend chemists and chemical engineers at the Southern Regional Research Center initiated research to modify cotton chemically. Their efforts in developing agents that crosslinked the cellulose fibers and in establishing crosslinking mechanisms led to improved durable press fabrics. SRRC studies also developed new agents that improved the durability of flame retardant cotton to laundering.
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Image Credit: Photo courtesy National Archives and Records Administration. (CC BY 2.0)Image Caption: The Southern Regional Research Center in New Orleans, Louisiana in August 1985.
2004
Innovations
A curious child who dissembled the clocks in her parent's home, Grace Hopper graduated from Vassar College with a B.A. in mathematics and physics. She continued her education at Yale University by completing a masters and Ph.D. in mathematics. She then returned to Vassar to teach.
During World… Read More
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…
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Designed and built by Fred Graue, a German immigrant, together with William Asche, the Old Graue Mill began operating around 1852 and served the village of Brush Hill (Hinsdale) until World War I. Its undershot waterwheel, wooden gearing system, belt power transmission, bucket elevators, and… Read More
A variety of mechanical feeders, including drag-chain conveyors and rotary pocket feeders, historically have been used to volumetrically control the flow of fuel to coal pulverizers on power generators. Most power generation in the United States has relied on burning fossil fuels in steam…
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On April 21, 1949, a completely outdoor turbine-generator was placed into commercial operation at the Greens Bayou electric power plant--the first fully outdoor unit to operate in the United States. The demand for unprecedented quantities of electricity after World War II pressed utilities to…
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This is an old technology brought here by new immigrants. It represents the beginning of modern life in a hard wilderness. This wind-powered gristmill was built in 1870 by Fred Meiss, Jr., and Otto Fiek near Spring Creek, from parts of the first windmill in the new state of Texas, erected by E.G…
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At its completion, the 5.8-mile Gunnison Tunnel under western Colorado's Vernal Mesa was the longest irrigation tunnel in America. It carried water from the Gunnison River to the Uncompahgre Valley to irrigate 146,000 acres of cropland.
Work on the 30,582-foot tunnel was first performed…
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In the first nine months of operation, the B reactor produced fissionable plutonium for the world's first atomic bomb (the Trinity test on July 16, 1945), and for the atomic bomb that was dropped on Nagasaki, Japan, on August 9, 1945, killing 35,000 people. This, and similar destruction at…
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The Hanford B-Reactor was the first plutonium production reactor to be placed in operation. Its success made possible the subsequent development of atomic energy. The research work, engineering, and planning required to make the reactor operate is one of our most advanced achievements. Much of…
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This 350-horsepower Corliss type steam engine is an example of a typical late nineteenth century steam engine. The essential feature of Corliss type engines is the valves that admit steam to and exhaust it from the cylinder. The Corliss valve gear made the engine extremely efficient in steam… Read More
This landmark artifact represents the first commercially successful farm tractor in the world powered by an internal-combustion engine. It was invented and built by Charles W. Hart and Charles H. Parr in Charles City, Iowa, as their Model 3, following two prototype versions. Major accomplishments… Read More
The precise system of measurements provided today by the U.S. Coast and Geodetic Survey originated with an act of Congress under the administration of Thomas Jefferson in 1807 that funded work on "an accurate chart" of America's coastal waters. Intended to aid sea-going commerce, the first…
Havemeyer Hall was built between 1896 and 1898 under the leadership of Charles Frederick Chandler. It provided research and teaching facilities for faculty and students specializing in industrial, inorganic, organic, physical, and biological chemistry. Pioneering research done here led to the…
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The Polymer Research Institute was established in 1946 by Herman F. Mark, a pioneer in the study of giant molecules. The Institute brought together a number of polymer researchers to create the first academic facility in the United States devoted to the study and teaching of polymer science.…
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Developed by the Hohokam, a prehistoric group of Native Americans, the canal system in the Salt River Valley serviced more than 100,000 acres of mostly arid desert country in what is now southern Arizona. The prehistoric Hohokam constructed one of the largest and most sophisticated irrigation…
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The first long underwater tunnel in the world designed for motor vehicle use was built from 1920 to 1927. The 29.5-foot-diameter, 8,500-foot-long twin tubes of this tunnel were shield-driven by the pneumatic method through extremely difficult river-bottom conditions that were overcome by the… Read More
The first practical demonstration of this tractor took place in a peat field on Roberts Island on November 24, 1904, and was patented and in production by December of 1907. The existing machine represents the earliest gasoline-powered track-type tractors that were to help revolutionize…
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Known as the Paper City by 1877, this site was a major industrial center with extensive paper mills, textile mills, machine shops, and a water power system that had within a few decades transformed the fields of Ireland Parish into the manufacturing city of Holyoke. A group of Boston investors… Read More
In 1918, the U.S. Reclamation Service's director and chief engineer Arthur P. Davis proposed a dam of unprecedented height to control the devastating floods on the Colorado River, generate hydroelectric power, and store the river's ample waters for irrigation and other uses. A dam project of…
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The terminal, designed by noted architect Joseph Finger and built by the Works Progress Administration, is a rare remaining example of classic art deco airport architecture, featuring the distinctive design elements of that age: step forms, sweeping curves, and intricate geometrical patterns and…
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