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Biography
Charles T. Main
Charles Thomas Main (born in Marblehead, Massachusetts, February 16, 1856 – March 6, 1943)[1] was an American mechanical engineer and business executive, who worked for New England textile mills, and also in the then new field of hydroelectricity. He is known as founder of Charles T. Main, Inc., and as president of the American Society of Mechanical Engineers in the year 1918-19. He was th
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  • 12 Dec 2022
Biography
Coleman Sellers II
Coleman Sellers II (January 28, 1827 – December 28, 1907) was a prominent American engineer, chief engineer of William Sellers & Co., professor of mechanics at the Franklin Institute, professor of engineering practice at Stevens Institute of Technology and inventor. He obtained more than thirty letters-patent for inventions of his own, and served as president of the American Society of Mechani
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  • 12 Dec 2022
Topic Review
3D Printing and Classification of Microneedles
Microneedles are micron-sized devices that are used for the transdermal administration of a wide range of active pharmaceutics substances with minimally invasive pain. 3D-printing technologies that have the potential to revolutionize the manufacturing of microneedles. 3D-printed microneedles have applications in various fields, such as drug delivery, vaccine delivery, cosmetics, therapy, tissue engineering, and diagnostic devices. Microneedles are classified into five types, which include solid microneedles, hollow microneedles, coated microneedles, hydrogel-forming microneedles, and dissolving microneedles.
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Biography
Benjamin Hafner
Benjamin (Ben) Hafner (March 24, 1821 – 1899) known as "The Flying Dutchman" and "Uncle Ben," was an American locomotive engineer, who worked for the Erie Railway, and at the end of his life known as the oldest engineer in point of service in the United States.[1][2][3] Benjamin Hafner, who departed this life in the spring of 1899, was at that time the oldest engineer - in point of service
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Biography
David E. Muller
David Eugene Muller (November 2, 1924 – April 27, 2008) was an American mathematician and computer scientist. He was a professor of mathematics and computer science at the University of Illinois (1953–92), when he became an emeritus professor, and was an adjunct professor of mathematics at the New Mexico State University (1995-2008). Muller received his BS in 1947 and his PhD in 1951 in phys
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Biography
Benjamin Allen Goldman
Benjamin A. Goldman (also known as Benjamin Allen Goldman, Ben Goldman) is an entrepreneur, author, artist, and inventor from the USA. He was an advisor to the Clinton Administration, serving as a Charter Member of the National Environmental Justice Advisory Council (1994-1995), a committee member of the President's Council on Sustainable Development(1994-1995).[1][2][3][4] Goldman was born t
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Topic Review
3D Bioprinting for Pancreas Engineering/Manufacturing
Diabetes is the most common chronic disease in the world, and it brings a heavy burden to people’s health. Against this background, diabetic research, including islet functionalization has become a hot topic in medical institutions all over the world. Especially with the rapid development of microencapsulation and three-dimensional (3D) bioprinting technologies, organ engineering and manufacturing have become the main trends for disease modeling and drug screening. Especially the advanced 3D models of pancreatic islets have shown better physiological functions than monolayer cultures, suggesting their potential in elucidating the behaviors of cells under different growth environments.
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Topic Review
Process of Converting Ammonia to Hydrogen
Hydrogen technology for transition to a hydrogen-based economy requires supplying clean and renewable energy and capture of CO2 from current fossil hydrogen production. Ammonia is the most popular substance as a green hydrogen carrier because it does not carry carbon, and the total hydrogen content of ammonia is higher than other fuels and is thus suitable to convert to hydrogen. Ammonia cracking is a process of producing hydrogen from ammonia decomposition over a catalyst at high temperatures and is preferentially performed at normal pressures. 
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Topic Review
Reusable Launch System
A reusable launch system is a launch system that allows for the reuse of some or all of the component stages. To date, several fully reusable suborbital systems and partially reusable orbital systems have been flown. The first reusable spacecraft to reach orbit was the Space Shuttle (in 1981), which failed to accomplish the intended goal of reducing launch costs to below those of expendable launch systems. During the 21st century, commercial interest in reusable launch systems has grown considerably, with several active launchers. SpaceX CEO Elon Musk has said that if one can figure out how to reuse rockets like airplanes then the cost of access to space will be reduced by as much as a factor of a hundred. SpaceX's Falcon 9 rocket has a reusable first stage and capsule (for Dragon flights) with an expendable second stage. SpaceX has been developing a reusable second stage since the late 2010s which, if successful, could make possible the first fully-reusable orbital launch vehicle during the 2020s. Virgin Galactic has flown reusable suborbital spaceplanes, and the suborbital Blue Origin New Shepard rocket has a recoverable boost stage and passenger capsule.
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  • 12 Dec 2022
Biography
Edward Orton Jr.
Professor Edward Orton Jr. (October 8, 1863 in Chester, New York, United States – February 10, 1932 in Columbus, Ohio, USA) was an United States academic administrator, businessman, ceramic engineer, geologist, and philanthropist.[1] Orton Jr. is the son of Dr Edward Orton Sr., a Harvard educated geologist, and Mary Jennings Orton. Shortly after his birth, in 1865, his family relocated to Y
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