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Breathalyzer
A breathalyzer or breathalyser (a portmanteau of ''breath'' and ''analyzer/analyser'') is a device for estimating blood alcohol content (BAC), or to detect viruses or diseases from a breath sample. The name is a genericized trademark of the Breathalyzer brand name of instruments developed by inventor Robert Frank Borkenstein in the 1950s. Origins A 1927 paper produced by Emil Bogen, who collected air in a football bladder and then tested this air for traces of alcohol, discovered that the alcohol content of 2 litres of expired air was a little greater than that of 1 cc of urine. However, research into the possibilities of using breath to test for alcohol in a person's body dates as far back as 1874, when Francis E. Anstie made the observation that small amounts of alcohol were excreted in breath. Also, in 1927 a Chicago chemist, William Duncan McNally, invented a breathalyzer in which the breath moving through chemicals in water would change color. One use for his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breathalyzer On Citizen
A breathalyzer or breathalyser (a portmanteau of ''breath'' and ''analyzer/analyser'') is a device for estimating blood alcohol content (BAC), or to detect viruses or diseases from a breath sample. The name is a genericized trademark of the Breathalyzer brand name of instruments developed by inventor Robert Frank Borkenstein in the 1950s. Origins A 1927 paper produced by Emil Bogen, who collected air in a football bladder and then tested this air for traces of alcohol, discovered that the alcohol content of 2 litres of expired air was a little greater than that of 1 cc of urine. However, research into the possibilities of using breath to test for alcohol in a person's body dates as far back as 1874, when Francis E. Anstie made the observation that small amounts of alcohol were excreted in breath. Also, in 1927 a Chicago chemist, William Duncan McNally, invented a breathalyzer in which the breath moving through chemicals in water would change color. One use for his i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Frank Borkenstein
Robert Frank Borkenstein (August 31, 1912 – August 10, 2002) was an American inventor, researcher, and professor, and is known as the inventor of the Breathalyzer. Early Years Robert F. Borkenstein was born in Fort Wayne, Indiana on August 31, 1912. He graduated high school during the beginning of the Great Depression, and due to other financial issues and constraints he was unable to continue his education in college. He would find employment working in Fort Wayne as a photographic technician, where he developed an expertise in color film leading to his invention of the color camera. In 1936, because of his skills and creativity Borkenstein was hired by the Indiana State Police Criminology Laboratory. Rising through the ranks quickly, Borkenstein when from working as a clerk to Captain in charge Laboratory Services. Throughout his time with the Indiana State Police, he helped to improve the use of photography in law enforcement and assisted in the creation of the polygraph machi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indiana State Police
The Indiana State Police is the statewide law enforcement agency for the U.S. state of Indiana. Indiana was the 12th state to offer protection to its citizens with a state police force. Its headquarters are in the Indiana Government Center North in Indianapolis. History On July 15, 1921, the Indiana legislature, with approval from the governor, to appoint "all necessary deputies in addition to the present officers of the law" to enforce a newly enacted vehicle registration law. The secretary of state appointed a 16-man ''Indiana Motor Vehicle Police,'' becoming the first law enforcement agency in the state to have statewide jurisdiction to enforce traffic laws, although they had only "limited" authority and were only authorized to enforce the "rules of the road" and motor vehicle laws. On March 10, 1927, the Indiana legislature created a ''Bureau of Criminal Identification and Investigation'', also under the secretary of state, for the purpose of installing and maintaining "lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Alcohol Content
Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes; it is expressed as mass of alcohol per volume or mass of blood. For example, a BAC of 0.10 by (0.10% or one tenth of one percent) means that there is 0.10 g of alcohol for every 100 mL of blood, which is the same as 21.7 mmol/L. A BAC of 0.10 by (0.10%) is 0.10 g of alcohol per 100 g of blood (23 mmol/L). A BAC of 0.0 is sober; in different countries the maximum permitted BAC when driving ranges from about 0.04% to 0.08%; BAC levels over 0.08% are considered very impaired; above 0.4% is potentially fatal. Effects by alcohol level Estimation by intake Blood alcohol content can be estimated by a method developed by Swedish professor in the 1920s: :EBAC = \frac\times100\%-\beta\times T where: * is the mass of alcohol consumed. * is the ratio of body water to total weight. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blood Alcohol
Blood alcohol content (BAC), also called blood alcohol concentration or blood alcohol level, is a measurement of alcohol intoxication used for legal or medical purposes; it is expressed as mass of alcohol per volume or mass of blood. For example, a BAC of 0.10 by (0.10% or one tenth of one percent) means that there is 0.10 g of alcohol for every 100 mL of blood, which is the same as 21.7 mmol/L. A BAC of 0.10 by (0.10%) is 0.10 g of alcohol per 100 g of blood (23 mmol/L). A BAC of 0.0 is sober; in different countries the maximum permitted BAC when driving ranges from about 0.04% to 0.08%; BAC levels over 0.08% are considered very impaired; above 0.4% is potentially fatal. Effects by alcohol level Estimation by intake Blood alcohol content can be estimated by a method developed by Swedish professor in the 1920s: :EBAC = \frac\times100\%-\beta\times T where: * is the mass of alcohol consumed. * is the ratio of body water to total weight. It va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Cell
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most batteries in requiring a continuous source of fuel and oxygen (usually from air) to sustain the chemical reaction, whereas in a battery the chemical energy usually comes from substances that are already present in the battery. Fuel cells can produce electricity continuously for as long as fuel and oxygen are supplied. The first fuel cells were invented by Sir William Grove in 1838. The first commercial use of fuel cells came more than a century later following the invention of the hydrogen–oxygen fuel cell by Francis Thomas Bacon in 1932. The alkaline fuel cell, also known as the Bacon fuel cell after its inventor, has been used in NASA space programs since the mid-1960s to generate power for satellites and space capsules. Since then, fuel cells have b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rolla Neil Harger
Rolla Neil Harger (January 14, 1890 – August 8, 1983) invented an early breathalyzer, called the Drunkometer, to test for driving under the influence in 1931; he was awarded the patent in 1936. He was biochemistry and pharmacology department chairman of the Indiana University School of Medicine from 1933 to 1956 and worked as a professor in the department of biochemistry and toxicology from 1922 to 1960. Harger was born on January 14, 1890, in Sherman Township, Decatur County, Nebraska. He used Nebraska on his World War I draft registration and Decatur County, Kansas on his World War II draft registration He graduated from Yale University in 1922. Harger was an assistant professor at Indiana University School of Medicine in the newly formed department of biochemistry and pharmacology. In 1931, he invented the Drunkometer to test for driving under the influence. In 1938 he was one of the five people chosen to be on the subcommittee of the National Safety Council that drafte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Duncan McNally
William Duncan McNally (July 8, 1882 – June 29, 1961) was the chief chemist in the Cook County Department of Public Health and the chief chemist for the Cook County Medical Examiner's office. He invented an early breathalyzer in 1927. He was a holder of M.D. Biography William Duncan McNally was born on July 8, 1882 in Saginaw, Michigan to Elizabeth and Edward Henry McNally. He graduated from the University of Michigan in 1905. He married Helen Marie Pierce on September 22, 1906 in Chicago, Illinois. By 1911 he was working as a chemist at Armour and Company in East St. Louis, Illinois. By 1918 he was the toxicologist for the Cook County Department of Public Health.William Duncan McNally in the World War I draft registration He invented an early breathalyzer in 1927. He died on June 29, 1961 in Mobile, Alabama Mobile ( , ) is a city and the county seat of Mobile County, Alabama, United States. The population within the city limits was 187,041 at the 2020 United States c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Engineer
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use. Electrical engineering is now divided into a wide range of different fields, including computer engineering, systems engineering, power engineering, telecommunications, radio-frequency engineering, signal processing, instrumentation, photovoltaic cells, electronics, and optics and photonics. Many of these disciplines overlap with other engineering branches, spanning a huge number of specializations including hardware engineering, power electronics, electromagnetics and waves, microwave engineering, nanotechnology, electrochemistry, renewable energies, mechatronics/control, and electrica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UWIST
Cardiff University ( cy, Prifysgol Caerdydd) is a public research university in Cardiff, Wales, United Kingdom. It was established in 1883 as the University College of South Wales and Monmouthshire and became a founding college of the University of Wales in 1893. It merged with the University of Wales Institute of Science and Technology (UWIST) in 1988 as the University of Wales College, Cardiff (University of Wales, Cardiff, from 1996). In 1997 it received Academic degree, degree-awarding powers, but held them in abeyance. It adopted the trade name, operating name of Cardiff University in 1999; this became its legal name in 2005, when it became an independent university awarding its own degrees. Cardiff University is the only Welsh member of the Russell Group of research-intensive British universities. Academics and alumni of the university have included three heads of state or government, two Nobel Prize winners, 15 fellows of the Royal Society, 11 fellows of the Royal Academy of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardiff
Cardiff (; cy, Caerdydd ) is the capital and largest city of Wales. It forms a principal area, officially known as the City and County of Cardiff ( cy, Dinas a Sir Caerdydd, links=no), and the city is the eleventh-largest in the United Kingdom. Located in the south-east of Wales and in the Cardiff Capital Region, Cardiff is the county town of the historic county of Glamorgan and in 1974–1996 of South Glamorgan. It belongs to the Eurocities network of the largest European cities. A small town until the early 19th century, its prominence as a port for coal when mining began in the region helped its expansion. In 1905, it was ranked as a city and in 1955 proclaimed capital of Wales. Cardiff Built-up Area covers a larger area outside the county boundary, including the towns of Dinas Powys and Penarth. Cardiff is the main commercial centre of Wales as well as the base for the Senedd. At the 2021 census, the unitary authority area population was put at 362,400. The popula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lion Laboratories
The lion (''Panthera leo'') is a large cat of the genus '' Panthera'' native to Africa and India. It has a muscular, broad-chested body; short, rounded head; round ears; and a hairy tuft at the end of its tail. It is sexually dimorphic; adult male lions are larger than females and have a prominent mane. It is a social species, forming groups called ''prides''. A lion's pride consists of a few adult males, related females, and cubs. Groups of female lions usually hunt together, preying mostly on large ungulates. The lion is an apex and keystone predator; although some lions scavenge when opportunities occur and have been known to hunt humans, lions typically don't actively seek out and prey on humans. The lion inhabits grasslands, savannas and shrublands. It is usually more diurnal than other wild cats, but when persecuted, it adapts to being active at night and at twilight. During the Neolithic period, the lion ranged throughout Africa and Eurasia from Southeast Europe to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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