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Julian W. Hill
Julian W. Hill (1904-1996) was an American chemist who helped develop nylon. Early life Julian W. Hill was born in 1904, and he grew up in Warrenton, Missouri. He graduated from the School of Engineering & Applied Science at Washington University in St. Louis in 1924, where he earned a bachelor's degree in chemical engineering, and he went on to earn a PhD in organic chemistry from the Massachusetts Institute of Technology in 1928. Career Hill joined DuPont, where he worked as a chemist in the Experimental Station laboratories under Wallace H. Carothers's supervision. He initially studied polymers in the 1920s. By 1930, he had used a cold drawing method to produce a polyester.Wallace Carothers and the Development of Nylon [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hockessin, Delaware
Hockessin () is a census-designated place (CDP) in New Castle County, Delaware, New Castle County, Delaware, United States. The population was 13,478 at the 2020 United States census, 2020 Census. History Hockessin came into existence as a little village in 1688 when several families settled in the area. The village was named after the Delaware languages, Lenape word ''hokes'', meaning good bark or good bark hill. There is a second and more likely origin for the name. While the word Hockessin does look like a Native American word, the name Hockessin did not show up on any early maps until many years after the Hockessin Meeting House was built and what is now the Village of Hockessin was never settled by the Native Americans, while they did have a hunting camp nearby. There was no town name Hockessin and the area was referred to as Mill Creek Hundred. The actual name is believed to be derived from one of the first settled properties which was named Occasion and settled by William C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vassar College
Vassar College ( ) is a private liberal arts college in Poughkeepsie, New York, United States. Founded in 1861 by Matthew Vassar, it was the second degree-granting institution of higher education for women in the United States. The college became coeducational in 1969. The college offers BA degrees in more than fifty majors. Vassar College's varsity sports teams, known as the Brewers, play in the NCAA Division III as members of the Liberty League. Currently, there are close to 2,500 students. The college is one of the historic Seven Sisters. The Vassar campus comprises over and more than 100 buildings. A designated arboretum, the campus features more than 200 species of trees, a native plant preserve, and a ecological preserve. History Vassar was founded as a women's school under the name "Vassar Female College" in 1861. Its first president was Milo P. Jewett, who had previously been first president of another women's school, Judson College; he led a staff of ten pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DuPont People
Dupont, DuPont, Du Pont, duPont, or du Pont may refer to: People * Dupont (surname), a surname of French origin * Du Pont family, one of the wealthiest families in the United States Companies * DuPont, one of the world's largest chemical companies * Du Pont Motors, a marine engine and automobile manufacturer from 1919 to 1931 * Dupont Brewery, a brewery in Belgium Places in the United States * Dupont, Colorado, an unincorporated community * Du Pont, Georgia, a town * Dupont, Indiana, a town * Dupont, Pointe Coupee Parish, Louisiana, an unincorporated community * Dupont, Ohio, a village * Dupont, Pennsylvania, a borough * Dupont, Tennessee, a community * DuPont, Washington, a city * Dupont, Wisconsin, a town * DuPont State Forest, North Carolina * Fort DuPont, Delaware Transportation * Dupont station, a subway station in Toronto, Canada * DuPont station (Sound Transit), a planned commuter rail station in DuPont, Washington, US * Dupont Circle station, a subway station in Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massachusetts Institute Of Technology School Of Science Alumni
Massachusetts ( ; ), officially the Commonwealth of Massachusetts, is a U.S. state, state in the New England region of the Northeastern United States. It borders the Atlantic Ocean and the Gulf of Maine to its east, Connecticut and Rhode Island to its south, New Hampshire and Vermont to its north, and New York (state), New York to its west. Massachusetts is the List of U.S. states and territories by area, sixth-smallest state by land area. With a 2024 U.S. Census Bureau-estimated population of 7,136,171, its highest estimated count ever, Massachusetts is the most populous state in New England, the List of U.S. states and territories by population, 16th-most-populous in the United States, and the List of states and territories of the United States by population density, third-most densely populated U.S. state, after New Jersey and Rhode Island. Massachusetts was a site of early British colonization of the Americas, English colonization. The Plymouth Colony was founded in 16 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McKelvey School Of Engineering Alumni
McKelvey is a surname. Notable people with the surname include: *Andrew McKelvey (1934–2008), American businessman * Frank McKelvey (1895–1974), Irish painter * Frank McKelvey Bell, Canadian soldier and writer * George McKelvey (lawman), constable of Charleston, Arizona Territory * George McKelvey (mayor), American politician * George McKelvey (soccer), American soccer player * Gerald McKelvey, American politician *Grant McKelvey, Scottish rugby union coach and player * Houston McKelvey (born 1942), Irish Anglican dean * J. J. McKelvey (born 1980), American football player * Jack Marston McKelvey (born 1941), American bishop *Jim McKelvey (born 1965), American computer scientist * Joan McKelvey, Canadian judge *Joe McKelvey (died 1922), Irish republican * John McKelvey (1847–1944), American baseball player *Miguel McKelvey (born 1973/74), American billionaire * Richard McKelvey (1944–2002), American political scientist * Rob McKelvey (born 1969), American golfer * Robert Mc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scientists From St
A scientist is a person who researches to advance knowledge in an area of the natural sciences. In classical antiquity, there was no real ancient analog of a modern scientist. Instead, philosophers engaged in the philosophical study of nature called natural philosophy, a precursor of natural science. Though Thales ( 624–545 BC) was arguably the first scientist for describing how cosmic events may be seen as natural, not necessarily caused by gods,Frank N. Magill''The Ancient World: Dictionary of World Biography'', Volume 1 Routledge, 2003 it was not until the 19th century that the term ''scientist'' came into regular use after it was coined by the theologian, philosopher, and historian of science William Whewell in 1833. History The roles of "scientists", and their predecessors before the emergence of modern scientific disciplines, have evolved considerably over time. Scientists of different eras (and before them, natural philosophers, mathematicians, natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1996 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1904 Births
Events January * January 7 – The distress signal ''CQD'' is established, only to be replaced 2 years later by ''SOS''. * January 8 – The Blackstone Library is dedicated, marking the beginning of the Chicago Public Library system. * January 12 – The Herero Wars in German South West Africa begin. * January 17 – Anton Chekhov's last play, ''The Cherry Orchard'' («Вишнëвый сад», ''Vishnevyi sad''), opens at the Moscow Art Theatre directed by Constantin Stanislavski, 6 month's before the author's death. * January 23 – The Ålesund fire destroys most buildings in the town of Ålesund, Norway, leaving about 10,000 people without shelter. * January 25 – Halford Mackinder presents a paper on "The Geographical Pivot of History" to the Royal Geographical Society of London in which he formulates the Heartland Theory, originating the study of geopolitics. February * February 7 – The Great Baltimore Fire in Baltimore, Maryland, destroys over 1,500 build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poliomyelitis
Poliomyelitis ( ), commonly shortened to polio, is an infectious disease caused by the poliovirus. Approximately 75% of cases are asymptomatic; mild symptoms which can occur include sore throat and fever; in a proportion of cases more severe symptoms develop such as headache, neck stiffness, and paresthesia. These symptoms usually pass within one or two weeks. A less common symptom is permanent paralysis, and possible death in extreme cases.. Years after recovery, post-polio syndrome may occur, with a slow development of muscle weakness similar to what the person had during the initial infection. Polio occurs naturally only in humans. It is highly infectious, and is spread from person to person either through fecal–oral transmission (e.g. poor hygiene, or by ingestion of food or water contaminated by human feces), or via the oral–oral route. Those who are infected may spread the disease for up to six weeks even if no symptoms are present. The disease may be diagnosed by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newspapers
A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as politics, business, sports, art, and science. They often include materials such as opinion columns, weather forecasts, reviews of local services, Obituary, obituaries, birth notices, crosswords, editorial cartoons, comic strips, and advice columns. Most newspapers are businesses, and they pay their expenses with a mixture of Subscription business model, subscription revenue, Newsagent's shop, newsstand sales, and advertising revenue. The journalism organizations that publish newspapers are themselves often Metonymy, metonymically called newspapers. Newspapers have traditionally been published Printing, in print (usually on cheap, low-grade paper called newsprint). However, today most newspapers are also Electronic publishing, published on webs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyamide
A polyamide is a polymer with repeating units linked by amide bonds. Polyamides occur both naturally and artificially. Examples of naturally occurring polyamides are proteins, such as wool and silk. Artificially made polyamides can be made through step-growth polymerization or solid-phase synthesis yielding materials such as nylons, aramids, and sodium polyaspartate. Synthetic polyamides are commonly used in textiles, automotive industry, carpets, kitchen utensils and sportswear due to their high durability and strength. The transportation manufacturing industry is the major consumer, accounting for 35% of polyamide (PA) consumption. Classification Polymers of amino acids are known as polypeptides or proteins. According to the composition of their main chain, synthetic polyamides are classified as follows: All polyamides are made by the formation of an amide function to link two molecules of monomer together. The monomers can be amides themselves (usually in the form of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
