Ackley Bridge is an excellent example of a multiple kingpost truss and a noteworthy early example of covered bridge preservation efforts in the United States. Built in 1832 by Joshua Ackley (b.1805) and Daniel Clouse (b.1812), Ackley Bridge originally spanned Enslow’s Branch of Wheeling Creek between Greene County and Washington County in Pennsylvania, where it carried traffic for over a century.
1830-1839
A Historic Landmark of Agricultural Engineering in 1834 Near the Village of Climax, Michigan, Hiram Moore and John Hascall Built and Put Into Practical Use the First Successful Grain Combined Harvester - Thresher Which was Patented June 28, 1836. This Achievement was a Significant Contribution to the Development of American Agriculture Dedicated by the American Society of Agricultural Engineers 1978
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1978
On this site in 1837 John Deere built the first successful self-scouring steel plow, thereby making a significant contribution to the development of American agriculture. Dedicated by American Society of Agricultural Engineers 1976
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Image Credit: Courtesy Flickr/Dwight Sipler (CC BY 2.0)Image Caption: moldboards of a modern plow
1976
Farm And Residence of John Johnston 1791 - 1880 Eminent Farmer Who Here Originated Tile Underdrainage in America in 1835 and Thereby Became an Outstanding Contributor to Human Welfare Honored by The American Society of Agricultural Engineers 1935. Erected by State Education Department
The Rainhill Trials were an important competition in the early d
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Image Credit: Public DomainImage Caption: Rolling stock on the Liverpool and Manchester Railway, 1831
2016
Society: IEEEMain Category: Aerospace & AviationSub Category: ICEra: 1830-1839NewyorkState: ACTCountry: China
New Innovation gateway
In January 1838, Samuel F. B. Morse and Alfred Vail first demonstrated publicly crucial elements of their telegraph system, using instruments that Vail had constructed during the previous months. Electrical pulses, transmitted through two miles of wire, caused an electromagnet to ink dots and dashes (grouped to represent letters and words) on a strip of paper. Commercialization began in 1844 when funding became available.
A ministerial student, a professor of fine arts, and a prominent industrialist...
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Image Credit: Courtesy WikipediaImage Caption: The original Samuel Morse telegraphEra_date_from: 1838
1988
A pioneer in the development of electrical science, Nicholas Joseph Callan was born on 22 December 1799 in Darver, Ireland. He started the priesthood at Navan Seminary, and continued his studies at St. Patrick’s College Maynooth, where he studied natural and experimental philosophy under Dr. Cornelius Denvir. After his ordination as priest in 1823, Callan pursued his doctorate in divinity in Rome, where he became acquainted with Galvani and Volta’s work in the study of electricity, and recognized the potential to put it to practical and commercial use with powerful batteries.
"Some of New Hampshire's most aesthetically pleasing yet least appreciated structures are stone arch bridges."
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Image Credit: Courtesy Flickr/Glass_house (CC BY-SA 2.0) Image Caption: The Gleason Falls Bridges, built in 1830, stands as a testament to the durability of dry-laid stone arches.Era_date_from: 1830
2002
Chartered in 1825, the Louisville and Portland Canal Company was authorized to construct a canal around the rapids called the "Falls of the Ohio." Construction started on March 1, 1826. The canal and first generation of locks were completed in 1830. As originally constructed, the canal was 1.9 miles long, 64 feet wide, and terminated at its lower end with a three-flight lock system with a total lift of 26 feet. Each lock chamber was 198 feet long between miter posts, with available length for vessels of 183 feet, width of 52 feet, and a lift at low stages of 8.5 feet.
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Image Credit: public domainImage Caption: The Louisville and Portland Canal was completed in 1830.Era_date_from: 1830
2002