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Robert A. Kehoe
Robert Arthur Kehoe (; November 18, 1893 – November 24, 1992) was an American toxicologist and a dominant figure in occupational health. Working on behalf of the lead industry (including the manufacturing of leaded gasoline and lead-acid batteries), Kehoe was the most powerful medically-trained proponent for the use of tetraethyllead as an additive in gasoline. Family and education Kehoe was born in Georgetown, Ohio, on November 18, 1893 to Jeremiah and Jessie Kehoe. Robert studied at Ohio State University. After his graduation at the University of Cincinnati (UC) medical school in 1920 he was a resident in pathology at the Cincinnati General Hospital. Shortly after obtaining his M.D. he married Lucille Marshall. Occupational health When he was an instructor in the UC Department of Physiology in 1924, he was hired by Charles Kettering for General Motors (GM) to examine health issues related to the production of tetraethyllead (TEL). In 1925 Kehoe became the chief medical adv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgetown, Ohio
Georgetown is a village (United States)#Ohio, village in Brown County, Ohio, Brown County, Ohio, United States located about 36 miles southeast of Cincinnati. The population was 4,331 at the 2010 United States Census, 2010 census. It is the county seat of Brown County. Georgetown was the childhood home of Ulysses S. Grant. History Georgetown was platted in 1819. The village took its name from Georgetown, Kentucky. A post office called Georgetown has been in operation since 1821. Geography Georgetown is located at (38.866926, −83.902590). According to the United States Census Bureau, the village has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 4,331 people, 1,722 households, and 1,085 families living in the village. The population density was . There were 1,939 housing units at an average density of . The racial makeup of the village was 95.5% White (U.S. Census), White, 1.9% African American (U.S. Census), African American, 0.3% ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Revolution
The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going from hand production methods to machines, new chemical manufacturing and iron production processes, the increasing use of steam power and water power, the development of machine tools and the rise of the mechanized factory system. Output greatly increased, and a result was an unprecedented rise in population and in the rate of population growth. Textiles were the dominant industry of the Industrial Revolution in terms of employment, value of output and capital invested. The textile industry was also the first to use modern production methods. The Industrial Revolution began in Great Britain, and many of the technological and architectural innovations were of British origin. By the mid-18th century, Britain was the world's leadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clair Cameron Patterson
Clair Cameron Patterson (June 2, 1922 – December 5, 1995) was an American geochemist. Born in Mitchellville, Iowa, Patterson graduated from Grinnell College. He later received his Ph.D. from the University of Chicago and spent his entire professional career at the California Institute of Technology (Caltech). In collaboration with George Tilton, Patterson developed the uranium–lead dating method into lead–lead dating. By using lead isotopic data from the Canyon Diablo meteorite, he calculated an age for the Earth of 4.55 billion years, which was a figure far more accurate than those that existed at the time, and one that has remained largely unchanged since 1956. Patterson first encountered lead contamination in the late 1940s as a graduate student at the University of Chicago. His work on this subject led to a total re-evaluation of the growth in industrial lead concentrations in the atmosphere and the human body, and his subsequent campaigning was seminal in the bann ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Poisoning
Lead poisoning, also known as plumbism and saturnism, is a type of metal poisoning caused by lead in the body. The brain is the most sensitive. Symptoms may include abdominal pain, constipation, headaches, irritability, memory problems, infertility, and tingling in the hands and feet. It causes almost 10% of intellectual disability of otherwise unknown cause and can result in behavioral problems. Some of the effects are permanent. In severe cases, anemia, seizures, coma, or death may occur. Exposure to lead can occur by contaminated air, water, dust, food, or consumer products. Lead poisoning poses a significantly increased risk to children as they are far more likely to ingest lead indirectly by chewing on toys or other objects that are coated in lead paint. The amount of lead that can be absorbed by children is also higher than that of adults. Exposure at work is a common cause of lead poisoning in adults with certain occupations at particular risk. Diagnosis is typically by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Oil Of New Jersey
ExxonMobil, an American multinational oil and gas corporation presently based out of Texas, has had one of the longest histories of any company in its industry. A direct descendant of John D. Rockefeller's Standard Oil, the company traces its roots as far back as 1886 to the founding of the Vacuum Oil Company, which would become part of ExxonMobil through its own merger with Mobil during the 1930s. Today, the company, which merged from Exxon and Mobil in 1999, is the largest investor-owned oil and gas company in the world by revenue and market capitalization. Standard Oil (1870-1911) Origins Both Exxon and Mobil were descendants of Standard Oil, established by John D. Rockefeller and partners in 1870 as the Standard Oil Company of Ohio. In 1882, it together with its affiliated companies was incorporated as the Standard Oil Trust with Standard Oil Company of New Jersey and Standard Oil Company of New York as its largest companies. The Anglo-American Oil Company was establishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engine Knocking
In spark ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front. The fuel-air charge is meant to be ignited by the spark plug only, and at a precise point in the piston's stroke. Knock occurs when the peak of the combustion process no longer occurs at the optimum moment for the four-stroke cycle. The shock wave creates the characteristic metallic "pinging" sound, and cylinder pressure increases dramatically. Effects of engine knocking range from inconsequential to completely destructive. Knocking should not be confused with pre-ignition—they are two separate events. However, pre-ignition can be followed by knocking. The phenomenon of detonation was described in November 1914 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Midgley Jr
Thomas Midgley Jr. (May 18, 1889 – November 2, 1944) was an American mechanical and chemical engineer. He played a major role in developing leaded gasoline (tetraethyl lead) and some of the first chlorofluorocarbons (CFCs), better known in the United States by the brand name Freon; both products were later banned from common use due to their harmful impact on human health and the environment. He was granted more than 100 patents over the course of his career. In 1944 he accidentally strangled himself to death in Worthington, Ohio. Early life Midgley was born in Beaver Falls, Pennsylvania, to a family with a history of invention. His father, Thomas Midgley Sr., was an inventor notably in the field of automobile tires. His maternal grandfather was James Emerson, who invented the "inserted tooth saw". His mother was Hattie Midgley (née Emerson). He grew up in Columbus, Ohio, and graduated from Cornell University in 1911 with a degree in mechanical engineering. On August 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles F
Charles is a masculine given name predominantly found in English and French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic name (in runic alphabet) or ''*karilaz'' (in Latin alphabet), whose meaning was "free man". The Old English descendant of this word was '' Ċearl'' or ''Ċeorl'', as the name of King Cearl of Mercia, that disappeared after the Norman conquest of England. The name was notably borne by Charlemagne (Charles the Great), and was at the time Latinized as ''Karolus'' (as in ''Vita Karoli Magni''), later also as '' Carolus''. Some Germanic languages, for example Dutch and German, have retained the word in two separate senses. In the particular case of Dutch, ''Karel'' refers to the given name, whereas the noun ''kerel'' means "a bloke, fellow, man". Etymology The name's etymology is a Common Germanic noun ''*karilaz'' meaning "free man", which survives in English as churl (< Old English ''ċeorl''), which developed its depr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dayton, Ohio
Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Dayton was estimated to be at 814,049 residents. The Combined Statistical Area (CSA) was 1,086,512. This makes Dayton the fourth-largest metropolitan area in Ohio and 73rd in the United States. Dayton is within Ohio's Miami Valley region, north of the Greater Cincinnati area. Ohio's borders are within of roughly 60 percent of the country's population and manufacturing infrastructure, making the Dayton area a logistical centroid for manufacturers, suppliers, and shippers. Dayton also hosts significant research and development in fields like industrial, aeronautical, and astronautical engineering that have led to many technological innovations. Much of this innovation is due in part to Wright-Patterson Air Force Base and its place in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Industries Association
The Lead Industries Association (LIA) was a trade organization that in 1925 made it possible for Tetraethyllead to be an additive of commercial gasoline and later incorporated in 1928 to promote the interests of the lead industry. The National Lead Institute was a predecessor of the Lead Industries Association The association lobbied to lift bans on, and promote the use of, lead pipes. The association also promoted lead-based paints, which became the subject of a poisoning lawsuit filed against paint manufacturers. In 1958, the LIA and the American Zinc Institute founded an organization with a similar mission that outlasted the LIA, the International Lead Zinc Research Organization (ILZRO). In 2002, the Lead Industries Association of Sparta, NJ, went bankrupt and defunct citing that they were unable to get insurance to cover the litigation against them. Richard Schweiker's 1972 testimony in the US Congressional record includes a transcript of a segment that aired January 28, 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crescentville, Philadelphia
Crescentville is a neighborhood in Northeast Philadelphia. It is located in the vicinity of Adams, Rising Sun, and Tabor Avenues. The name Crescentville is thought to be derived from the Crescentville Rope Factory that once stood along the Tookany Creek watershed. Crescentville is bounded by Tookany Creek to the south and west of Adams Avenue, up to the intersection of Comly and Rising Sun Avenues and to Whitaker Avenue to the east. Originally, the center of the "town" was located on the West side of Tookany/Tacony Creek, where Asylum Road (Adams Ave) crosses the creek. The ZIP Code is 19120 (Olney Postal Station). Its history dates back before the Civil War as an affluent area once home to many mansions and estates, as well as a few farms. Most notably, during the Civil War, the area was referred to as "Grubbtown". Some of the Lower portions of Crescentville are sub-categorized and considered the Whitaker Mills area in reference to the Whitaker Mills that stood along Tacony/Too ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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