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Frederick Sumner Brackett
Frederick Sumner Brackett (August 1, 1896 – January 28, 1988), was an American physicist and spectroscopist. Born in Claremont, California, to Frank and Lucretia Brackett, he graduated from Pomona College and worked as an observer at Mount Wilson Observatory until 1920. He observed the infra-red radiation of the Sun. Brackett received a doctorate in physics from the Johns Hopkins University in 1922. Applying a hydrogen filled discharge tube, he discovered the hydrogen Brackett series, where an electron jumps up from or drops down to the fourth fundamental level, in 1922. He then taught physics at the University of California, Berkeley. He moved to the Washington area and joined the Department of Agriculture's Fixed Nitrogen Lab in 1927. He transferred to the National Institute of Health (NIH) in 1936 as director of biophysics research. At NIH, he was a scientist in the Division of Industrial Hygiene, where he developed spectrometers to detect toxic substances in body ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frank Parkhurst Brackett
Frank Parkhurst Brackett (June 16, 1865 – September 3, 1951) was an American professor of astronomy who taught at Pomona College. Biography Brackett was born in Provincetown, Massachusetts, the eldest son of Solomon Hoyt Brackett and Mary A. née Thomas. The following year his father taught school at Stoneham, then in 1868 he was named principal of the High School in Keene, New Hampshire. He later became Professor of Natural Sciences at St. Johnsbury Academy in Vermont. Frank matriculated to Dartmouth College, where he paid his way working various jobs, then graduated with a B.S. in 1887 with Phi Beta Kappa honors. The same year he moved to Los Angeles, California and accepted a teaching position at a private school. In 1888, at the behest of Reverend Charles B. Sumner, he helped found a small Christian school in Pomona that served as the foundation of Pomona College. Bracket initially served as an instructor in mathematics and Latin at the school. He was married to the l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute Of Health
The National Institutes of Health, commonly referred to as NIH (with each letter pronounced individually), is the primary agency of the United States government responsible for biomedical and public health research. It was founded in the late 1880s and is now part of the United States Department of Health and Human Services. The majority of NIH facilities are located in Bethesda, Maryland, and other nearby suburbs of the Washington metropolitan area, with other primary facilities in the Research Triangle Park in North Carolina and smaller satellite facilities located around the United States. The NIH conducts its own scientific research through the NIH Intramural Research Program (IRP) and provides major biomedical research funding to non-NIH research facilities through its Extramural Research Program. , the IRP had 1,200 principal investigators and more than 4,000 postdoctoral fellows in basic, translational, and clinical research, being the largest biomedical research institut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recipients Of The Legion Of Merit
The Legion of Merit is a decoration of the United States and is awarded to foreign military personnel in four grades and to U.S. military personnel without distinction of degree. The following are notable recipients within the award. Chief Commander Commander } , Gabi Ashkenazi , Israeli Defence Forces , July 24, 2008 , Chief of Staff – Israeli Defence Forces , - , , Vice Admiral , Refiloe Johannes Mudimu , South African Navy , 2008 , For role in strengthening ties with US Navy , - , , General , Toshio Tamogami , Air Self-Defense Force , August 19, 2008 , , - , , General , Ashfaq Parvez Kayani , Pakistani Army , January 1, 2009 , , - , , Lieutenant General , Ken Gillespie , Australian Army , 2009 , Chief of Army , - , , General , Sverker Göranson , Swedish Armed Forces , 2010 , Supreme Commander of the Swedish Armed Forces. For dedication and professionalism as supreme commander led the continuing transformation of the Swedish Armed Forces and the Swedish internati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomona College Alumni
Pomona may refer to: Places Argentina * Pomona, Río Negro Australia * Pomona, Queensland, Australia, a town in the Shire of Noosa * Pomona, New South Wales, Australia Belize * Pomona, Belize, a municipality in Stann Creek District Mexico * Pomona, Tabasco, a Mayan archeological site Namibia * Pomona, Namibia New Zealand * Pomona Island, New Zealand South Africa * Pomona, Kempton Park United Kingdom * Pomona, an old name for the Mainland of Orkney * Pomona Docks, in Manchester, England United States * Pomona, California * Pomona, Illinois * Pomona, Kansas * Pomona, Maryland * Pomona, Michigan * Pomona, Missouri * Pomona, New Jersey * Pomona, New York * Pomona, Tennessee * Pomona, Washington Academic institutions * California State Polytechnic University, Pomona, a public polytechnic university * Pomona College, a liberal arts college in Claremont, California Other uses * Pomona (fruit survey), a treatise on or a survey of fruit varieties * Pomona (mythology), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1988 Deaths
File:1988 Events Collage.png, From left, clockwise: The oil platform Piper Alpha explodes and collapses in the North Sea, killing 165 workers; The USS Vincennes (CG-49) mistakenly shoots down Iran Air Flight 655; Australia celebrates its Bicentennial on January 26; The 1988 Summer Olympics are held in Seoul, South Korea; Soviet troops begin their withdrawal from Afghanistan, which is completed the next year; The 1988 Armenian earthquake kills between 25,000-50,000 people; The 8888 Uprising in Myanmar, led by students, protests the Burma Socialist Programme Party; A bomb explodes on Pan Am Flight 103, causing the plane to crash down on the town of Lockerbie, Scotland- the event kills 270 people., 300x300px, thumb rect 0 0 200 200 Piper Alpha rect 200 0 400 200 Iran Air Flight 655 rect 400 0 600 200 Australian Bicentenary rect 0 200 300 400 Pan Am Flight 103 rect 300 200 600 400 1988 Summer Olympics rect 0 400 200 600 8888 Uprising rect 200 400 400 600 1988 Armenian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1896 Births
Events January–March * January 2 – The Jameson Raid comes to an end, as Jameson surrenders to the Boers. * January 4 – Utah is admitted as the 45th U.S. state. * January 5 – An Austrian newspaper reports that Wilhelm Röntgen has discovered a type of radiation (later known as X-rays). * January 6 – Cecil Rhodes is forced to resign as Prime Minister of the Cape of Good Hope, for his involvement in the Jameson Raid. * January 7 – American culinary expert Fannie Farmer publishes her first cookbook. * January 12 – H. L. Smith takes the first X-ray photograph. * January 17 – Fourth Anglo-Ashanti War: British redcoats enter the Ashanti capital, Kumasi, and Asantehene Agyeman Prempeh I is deposed. * January 18 – The X-ray machine is exhibited for the first time. * January 28 – Walter Arnold, of East Peckham, Kent, England, is fined 1 shilling for speeding at (exceeding the contemporary speed limit of , the first spee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
York University
York University (french: Université York), also known as YorkU or simply YU, is a public university, public research university in Toronto, Ontario, Canada. It is Canada's fourth-largest university, and it has approximately 55,700 students, 7,000 faculty and staff, and over 325,000 alumni worldwide. It has 11 faculties, including the Faculty of Liberal Arts and Professional Studies, Faculty of Science, Lassonde School of Engineering, Schulich School of Business, Osgoode Hall Law School, Glendon College, Faculty of Education, Faculty of Health, Faculty of Environmental and Urban Change, Faculty of Graduate Studies, School of the Arts, Media, Performance and Design, and 28 research centres. York University was established in 1959 as a non-denominational institution by the ''York University Act'', which received royal assent in the Legislative Assembly of Ontario on 26 March of that year. Its first class was held in September 1960 in Falconer Hall on the University of Toronto campu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brackett (crater)
Brackett is a small lunar impact crater that lies near the southeast edge of Mare Serenitatis. The crater is named after American physicist Frederick Sumner Brackett. The crater has been covered by lava flow, leaving only a ring-shaped trace in the surrounding lunar mare. This crater is best observed under oblique illumination, as it is otherwise difficult to find. The southern rim is almost contacting a rille system named the Rimae Plinius. References * * * * * * * * * * * External links Brackett at The Moon WikiLTO-42C4 Brackett— L&PI topographic map In modern mapping, a topographic map or topographic sheet is a type of map characterized by large- scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historic ... Impact craters on the Moon {{Craters on the Moon: A–B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunar Crater
Lunar craters are impact craters on Earth's Moon. The Moon's surface has many craters, all of which were formed by impacts. The International Astronomical Union currently recognizes 9,137 craters, of which 1,675 have been dated. History The word ''crater'' was adopted from the Greek word for "vessel" (, a Greek vessel used to mix wine and water). Galileo built his first telescope in late 1609, and turned it to the Moon for the first time on November 30, 1609. He discovered that, contrary to general opinion at that time, the Moon was not a perfect sphere, but had both mountains and cup-like depressions. These were named craters by Johann Hieronymus Schröter (1791), extending its previous use with volcanoes. Robert Hooke in ''Micrographia'' (1665) proposed two hypotheses for lunar crater formation: one, that the craters were caused by projectile bombardment from space, the other, that they were the products of subterranean lunar volcanism. Scientific opinion as to the origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photobiology
Photobiology is the scientific study of the beneficial and harmful interactions of light (technically, non-ionizing radiation) in living organisms. The field includes the study of photophysics, photochemistry, photosynthesis, photomorphogenesis, visual system, visual processing, circadian rhythms, photomovement, bioluminescence, and ultraviolet radiation effects. The division between ionizing radiation and non-ionizing radiation is typically considered to be a photon energy greater than 10 eV, which approximately corresponds to both the first ionization energy of oxygen, and the ionization energy of hydrogen at about 14 eV. When photons come into contact with molecules, these molecules can absorb the energy in photons and become excited. Then they can react with molecules around them and stimulate "Photochemistry, photochemical" and "photophysical" changes of molecular structures. Photophysics This area of Photobiology focuses on the physical interactions of light and matter. Whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Legion Of Merit
The Legion of Merit (LOM) is a military award of the United States Armed Forces that is given for exceptionally meritorious conduct in the performance of outstanding services and achievements. The decoration is issued to members of the eight uniformed services of the United States Note: National Oceanic and Atmospheric Administration Commissioned Officer Corps Amendments Act of 2012 amended the Legion of Merit to be awarded to any uniformed service. as well as to military and political figures of foreign governments. The Legion of Merit (Commander degree) is one of only two United States military decorations to be issued as a (the other being the |
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