Engineering Innovations
Displaying 461 - 480 of 675
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NMR and MRI: Applications in Chemistry and Medicine Stony Brook, NY |
In the early 1970s, American chemist Paul C. Lauterbur demonstrated that nuclear magnetic resonance (NMR) could be used to generate images of macroscopic objects. In the years… |
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Noble Blade Cultivator Nobleford, |
In the 1930's thousands of acres of land were rendered unproductive through wind erosion because of drought, tillage, and dust mulch farming practices. Charles S. Noble, of… |
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Norfolk & Western #611, Class J Steam Locomotive Roanoke, VA |
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.… |
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Noria al-Muhammadiyya Hamah, |
The Noria al-Muhammadiyya is the most famous of many norias in Hama. This giant operating noria is unique in both size and age. Built in 763 AH, or 1361 CE, and still in use… |
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Norris Dam Knoxville, TN |
Norris Dam impounds the Clinch River, a mountain tributary of the Tennessee River. The facility stands as a tribute and symbol of the birth of the Tennessee Valley Authority (TVA… |
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North Island Main Trunk Railway Wellington, |
The North Island Main Trunk Railway permitted overland travel and development of the New Zealand hinterland. Built under challenging conditions and over difficult terrain, all… |
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North Island Naval Air Station San Diego, CA |
Known as the birthplace of Naval Aviation, North Island was the site of the first successful seaplane flight and the first amphibious flight in the U.S., both made by Glenn… |
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Northampton Street Bridge Easton, NJ |
The crossing of the Delaware River at Easton, Pennsylvania, provided a central link in travel from the northeastern seaboard to America's inland territories throughout the 18th… |
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Northern Pacific High Line Bridge No 64 Valley City, ND |
The Northern Pacific High Line Bridge No. 64, built between 1907 and 1908, has continued to perform yeoman service in the uninterrupted flow of the Nation's commerce. Nearly, 100… |
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Northern Pacific Rotary Snow Plow #2 Duluth, MN |
The oldest surviving rotary snowplow in the world Manufactured by Cooke Locomotive & Machine Works of Paterson in 1887, the Northern Pacific Rotary Snow Plow #2 is the oldest… |
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NS Savannah Baltimore, MD |
The N.S. Savannah was the first nuclear-powered cargo-passenger ship, built by the New York Shipbuilding Corporation at Camden, New Jersey. The 74 maximum-power thermal megawatt… |
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Nucleic Acid and Protein Chemistry Research at Rockefeller University New York, NY |
For more than a century, scientists at Rockefeller University have enhanced our understanding of the molecular basis of life — specifically the relationship between the structure… |
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Oakland Municipal Airport Oakland, CA |
This site, formerly known as Oakland Municipal Airport, served as the gateway to the Pacific during aviation’s pioneering age of trans-Pacific flight. Among other notable events,… |
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Ohio Canal System N/A, OH |
Between 1825 and 1847 the State of Ohio constructed 1,000 miles of canals and feeder canals, 33,000 acres of reservoir surface area, 29 dams across streams, 294 lift locks, 44… |
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Old Cape Henry Lighthouse Virginia Beach, VA |
The Old Cape Henry Light house was the first construction project authorized by the First Congress. Constructed by John McComb, Jr. of New York City, this project set the stage… |
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Old Mill in Nantucket Nantucket, MA |
The Old Mill, a smock type of windmill, believed to be the oldest operating windmill in the United States. Most of its parts are original. This mill is the sole survivor of four… |
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Old Wisla Bridge Tczew, |
Conceived as one of the major structures on the Prussian Eastern Railway, the Old Wisla Bridge at Tczew originally consisted of six wrought iron spans. Due to Germany's invasion… |
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Once-Over Mechanical Harvesting of Cucumbers East Lansing, MI |
The concept of once-over mechanical, as opposed to multiple-pick hand or experimental multiple-pick machine harvesting, represented a major break-through in the practice of… |
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Original USDA-ARS Experimental Watersheds Columbus, OH |
In the mid 1930's, the USDA Soil Conservation Service (SCS) realized the importance of hydrologic processes on agricultural fields and watersheds and determining their impact on… |
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Orroral Valley Tracking Station Tennent Cree, ACT |
Established 1965 the Orroral Valley Station, as well as the Honeysuckle Creek (1967) and Tidbinbilla (1965) sites supported NASA’s Deep Space Network, Manned Space Flight Network… |
