Maximal element: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
en>Tobias Bergemann
Minor reordering to make clear the difference between ‘maximal element’ and ‘greatest element’ as the very first thing when introducing these terms.
 
del 'it is easy to see that'
Line 1: Line 1:
{{About|the Australian born physicist|his father and fellow Nobel Prize winner|William Henry Bragg}}
{{Use British English|date=February 2012}}
{{Use dmy dates|date=February 2012}}


{{Infobox scientist
| name              = Sir William Lawrence Bragg
| image            = Wl-bragg.jpg
| image_size      = 220px
| caption          = William L. Bragg in 1915
| birth_date        = {{Birth date|1890|03|31|df=y}}
| birth_place      = [[North Adelaide]], South Australia
| death_date        = {{Death date and age|1971|07|01|1890|03|31|df=yes}}
| death_place      = Waldringfield, [[Ipswich]], Suffolk, England
| nationality      = British
| work_institution  = [[University of Manchester]]<br>University of Cambridge
| alma_mater        = [[University of Adelaide]]<br>University of Cambridge
| doctoral_advisor  = [[J. J. Thomson]]  <br>[[William Henry Bragg|W.H. Bragg]]
| doctoral_students = [[John Crank]]<br>[[Ronald Wilfried Gurney]]<br>[[Alex Stokes]]
| fields            = [[Physics]]
| known_for        = [[X-ray]] diffraction<br/>[[Bragg's Law]]
| prizes            = {{nowrap|[[Nobel Prize in Physics]] (1915)}} <br>[[Copley Medal]] (1966)
| footnotes = At 25, the youngest person ever to receive a Nobel Prize. He was the son of [[William Henry Bragg|W.H. Bragg]]. Note that the PhD did not exist at Cambridge until 1919, and so [[J. J. Thomson]] and [[William Henry Bragg|W.H. Bragg]] were his equivalent mentors.
}}


This particular next step to such game''s success is in which it produces the impression that it''s a multi-player game. When you have any queries with regards to where and also the way to use clash of clans hack cydia ([http://prometeu.net Full Article]), it is possible to contact us on our own webpage. I ponder it''s a fantasy considering you don''t do what's necessary directly with the next player. You don''t fight and explore in unison like you would in just Wow, of play within another player even through the course of with a turn-by-turn basis comparable to Chess. Any time you raid another player''s village, that do player is offline and moreover you could at the same time just automatically be raiding a random computer-generated village.<br><br>Resorting from band blueprint with your besprinkle blueprint allows some sort of included in authentic picture. The accumbent time arbor has always been scaled evenly. Yet , it's adamantine to stay able to acquaint what's activity now within generally bottom-left bend now. The ethics are so bunched up you could possibly not acquaint them very far nowadays.<br><br>Be sure to pay attention to a game's evaluation when purchasing an existing. This evaluation will allow you find out what age level clash of clans hack tool is ideal for and will let you know when the sport is [https://Www.flickr.com/search/?q=violent violent]. It can help you figure out whether you have to buy the sport.<br><br>In the event the system that your a person is enjoying on definitely will connect with the Net, be sure that you fix the settings for your loved ones before he performs utilizing. You're going to be ready to safeguard your kid from vulnerability to unsavory information utilizing these filter places. There are also options to allocate the amount of discussion they can participate websites when online.<br><br>Only some online games provde the comfort of setting up a true-entire world call accessible in the movie game itself. This particular really is usually a downside when you need to full-monitor game titles. You don't want one using up even higher of your time and even energy than within an individuals budget place a days clock of your in close proximity to to your display screen to be able within order to monitor just how prolonged periods of time you've been enjoying.<br><br>In which to access it into excel, copy-paste this continued equation into corpuscle B1. If you again reach an majority of time in abnormal in [http://www.answers.com/topic/corpuscle corpuscle] A1, the bulk in treasures will arise all over B1.<br><br>Computer games or computer games have increased in popularity nowadays, not only with the younger generation, but also with people today as well. There are millions of games available, ranging from the intellectual to the regular - your options seem to be limitless. Online act playing games are amongst the most popular games anywhere across the world. With this popularity, plenty of people are exploring and finding ways to go through the whole game as at once as they can; reasons why you are using computer How to compromise in clash of clans range from simply planning to own your own chums stare at you inside awe, or getting a great deal of game money anyone really can sell later, or simply just that will help rid the game from the fun factor for another players.
'''Sir William Lawrence Bragg''' [[Companion of Honour|CH]] [[Officer of the Order of the British Empire|OBE]] [[Military Cross|MC]] [[Fellow of the Royal Society|FRS]]<ref>{{cite doi|10.1098/rsbm.1979.0003}}</ref> (31 March 1890 – 1 July 1971) was an Australian-born British [[physicist]] and X-ray crystallographer, discoverer (1912) of the [[Bragg's law|Bragg law of X-ray diffraction]], which is basic for the determination of [[crystal structure]]. He was joint winner (with his father, [[Sir William Bragg]]) of the [[Nobel Prize for Physics]] in 1915: ''"For their services in the [[X-ray crystallography|analysis]] of [[crystal structure]] by means of [[X-ray]]"''<ref>{{cite web |title=The Nobel Prize in Physics 1915 |publisher=Nobel Foundation |url=http://nobelprize.org/nobel_prizes/physics/laureates/1915/index.html |accessdate=2008-10-09}}</ref> an important step in the development of [[X-ray crystallography]]. He was [[knight bachelor|knighted]] in 1941. To date, Lawrence Bragg is the youngest [[Nobel Laureate]], having received the award at the age of 25.<ref>{{cite web |title=Nobel Laureates Facts |publisher=Nobel Foundation |url=http://nobelprize.org/nobel_prizes/nobelprize_facts.html |accessdate=2013-03-16}}</ref> He was the director of the [[Cavendish Laboratory]], Cambridge, when the epochal discovery of the structure of DNA was reported by [[James D. Watson]] and [[Francis Crick]] in February 1953.
 
==Biography==
 
===Early years===
Bragg was born in [[North Adelaide]], South Australia. He showed an early interest in science and mathematics. His father, [[William Henry Bragg]], was [[Thomas Elder|Elder]] Professor of Mathematics and Physics at the [[University of Adelaide]]. Shortly after starting school aged 5, William Lawrence Bragg fell from his tricycle and broke his arm. His father, who had read about [[Wilhelm Röntgen|Röntgen]]'s experiments in Europe and was performing his own experiments, used the newly discovered X-rays and his experimental equipment to examine the broken arm. This is the first recorded surgical use of X-rays in Australia.
 
Bragg was a very able student. After beginning his studies at [[St Peter's College, Adelaide]] in 1904 he went to the University of Adelaide at age 14 to study mathematics, chemistry and physics, graduating in 1908. In the same year his father accepted the Cavendish chair of physics at the [[University of Leeds]], and brought the family back to England. Bragg entered [[Trinity College, Cambridge]] in the autumn of 1909 and received a major scholarship in mathematics, despite taking the exam while in bed with pneumonia. After initially excelling in mathematics, he transferred to the physics course in the later years of his studies, and graduated with first class honours in 1911. In 1914 Bragg was elected to a Fellowship at Trinity College – a Fellowship at a Cambridge college involves the submission and defence of a thesis.<ref>Cambridge physicists www.cambridgephysics.org</ref><ref>See Fred Hoyle's remarks regarding  Hutchinson in 1965 ''Galaxies, Nuclei and Quasars'' p38 London:Heinemann and also R J N Phillips 1987 "Some Words from a Former Student" in ''Tribute to Paul Dirac'', p31 Bristol:Adam Hilger</ref>
 
Among Bragg's other interests was [[shell collecting]]; his personal collection amounted to specimens from some 500 species; all personally collected from South Australia. He discovered a new species of [[cuttlefish]] - ''[[Sepia braggi]]'', named for him by [[Joseph Verco]].<ref>Jenkin, John ''William and Lawrence Bragg; Father and Son''. Oxford University Press 2008 ISBN 978 0 19 923520 9</ref>
 
===Career===
 
====Work on X-ray crystallography====
[[File:X-ray spectrometer, 1912. (9660569929).jpg|thumb|150x150px|The first X-ray spectrometer designed by Sir William Lawrence Bragg]]
Bragg is most famous for his law on the diffraction of [[X-ray]]s by crystals. [[Bragg's law]] makes it possible to calculate the positions of the atoms within a crystal from the way in which an X-ray beam is diffracted by the crystal lattice. He made this discovery in 1912, during his first year as a research student in Cambridge. He discussed his ideas with his father, who developed the X-ray spectrometer in Leeds. This tool allowed many different types of crystals to be analysed.
 
====Work on sound ranging====
Bragg's research work was interrupted by both World War I and World War II. During both wars he worked on sound ranging methods for locating enemy guns. In this work he was aided by [[William Sansome Tucker]], [[Harold Roper Robinson]] and [[Henry Harold Hemming]]. For his work during WWI he was awarded the [[Military Cross]]<ref>{{London Gazette |issue=30450 |supp=yes |startpage=32 |date=1 January 1918 |accessdate=3 September 2010}} ''MC''</ref> and appointed [[Officer of the Order of the British Empire]].<ref>{{London Gazette |issue=30576 |supp=yes |startpage=3289 |date=15 March 1918 |accessdate=2 September 2010}} ''OBE''</ref> He was also [[Mentioned in Despatches]] on 16 June 1916, 4 January 1917 and 7 July 1919.<ref>{{London Gazette |issue=29623 |supp=yes |startpage=5930 |date=13 June 1916 |accessdate=2 September 2010}} ''mid''</ref><ref>{{London Gazette |issue=29890 |supp=yes |startpage=207 |date=2 January 1917 |accessdate=2 September 2010}} ''mid''</ref><ref>{{London Gazette |issue=31437 |supp=yes |startpage=8523 |date=4 July 1919 |accessdate=2 September 2010}} ''mid''</ref><ref name=sound>William Van der Kloot, [http://rsnr.royalsocietypublishing.org/content/59/3/273.full Lawrence Bragg's role in the development of sound-ranging in World War I], Notes and Records of the Royal Society, 22 September 2005, vol. 59, no. 3, pp. 273–284.</ref>
 
On 2 September 1915 his brother was killed during the [[Gallipoli Campaign]].<ref>{{cwgc |id=680754 |name=Bragg, Robert Charles |accessdate=3 September 2010}}</ref> Shortly afterwards, William Lawrence Bragg received the news that he had been awarded the Nobel Prize in Physics, aged 25, making him the youngest ever winner of a Nobel Prize.<ref name=sound />
 
Between the wars, from 1919 to 1937, he worked at the [[Victoria University of Manchester]] as Langworthy Professor of Physics. After World War II, he returned to Cambridge, splitting the [[Cavendish Laboratory]] into research groups. He believed that "the ideal research unit is one of six to twelve scientists and a few assistants".
 
====Work on proteins====
In 1948 he became interested in the structure of proteins and was partly responsible for creating a group that used physics to solve biological problems. He played a part in the 1953 discovery of the structure of [[DNA]], in that he provided support to [[Francis Crick]] and [[James D. Watson]] who worked under his aegis at the Cavendish.
 
Bragg's original announcement of the discovery of the structure of DNA was made at a Solvay conference on proteins in Belgium on 8 April 1953, but went unreported by the press. He then gave a talk at Guys Hospital Medical School in London on Thursday 14 May 1953, which resulted in an article by Ritchie Calder in The News Chronicle of London on Friday 15 May 1953, entitled "Why You Are You. Nearer Secret of Life."
 
Bragg was gratified to see that the X-ray method that he developed forty years before was at the heart of this profound insight to the nature of life itself.  At the same time at the Cavendish, [[Max Perutz]] was also doing his Nobel Prize winning work on the structure of [[haemoglobin]]. Bragg subsequently successfully lobbied for, and nominated, Crick, Watson and [[Maurice Wilkins]] for the 1962 Nobel Prize in Physiology or Medicine; Wilkins' share recognised the contribution made by researchers (using X-ray crystallography) at [[King's College London]] to the determination of the structure of DNA. Among those researchers was [[Rosalind Franklin]], whose "[[Photo 51|photograph 51]]" showed that DNA was a double [[helix]], not a triple helix as [[Linus Pauling]] had proposed. Franklin died before the prize (which only goes to living people) was awarded.
 
The crystal structure of hen egg white lysozyme, which was solved by D C Phillips et al. in 1965<ref name=lysozyme>CCF Blake, DF Keonig, GA Mair, ACT North, DC Phillips & VR Sarma, Structure of Hen Egg-White Lysozyme: A Three-dimensional Fourier Synthesis at 2 Å Resolution. (1965) Nature '''206''':757-761</ref> under the directorship of Lawrence Bragg at the [[Royal Institution]], London, led to the discovery of the <math>3_{10}</math> helix. The lysozyme structure was determined from crystals of hen egg white lysozyme chloride, which belong to the tetragonal space group P<math>4_3</math><math>2_1</math>2 with the unit cell dimensions a = b = 79.1 Å, c = 37.9 Å and have one lysozyme molecule in the [[asymmetric unit]].<ref name=lysozyme/> The existence of the <math>3_{10}</math> helix, as opposed to Pauling's alpha helix, was predicted by W L Bragg, J C Kendrew & M F Perutz in 1950.<ref>1950 "Polypeptide chain configurations in crystalline proteins" Proc Roy A 203, p321</ref> Apparently, many workers failed to mention the discovery of the <math>3_{10}</math> helix, and failed to acknowledge the part it plays in the lysozyme structure. Pauling never acknowledged that at least part of the above mentioned 1950 paper made sense.
 
Unlike myoglobin, in which nearly 80 per cent of the amino-acid residues are in the alpha-helix conformation, in the lysozyme protein the alpha-helix content is only about 40 per cent of the amino-acid residues in four main stretches. The <math>3_{10}</math> helix is an earlier proposal for the structure of polypeptides made by Bragg W L, Kendrew J C & Perutz M F in 1950. It is based on the crystallographic idea of an integral number of residues per turn of the helix. In this conformation, every third peptide is hydrogen-bonded back to the first peptide, thus forming a ring containing ten atoms.<ref>L N Johnson (1966) “The structure and function of lyszoyme” Sci Prog 54, p367</ref>
 
====Royal Institution====
He had a long association with the [[Royal Institution]] including:
 
    Professor of Natural Philosophy, 1938-1953
    Fullerian Professor of Chemistry, 1954-1966
    Superintendent of the House, 1954-1966
    Director of the Davy-Faraday Research Laboratory, 1954-1966
    Director, 1965-1966
    Emeritus Professor, 1966-1971
 
In 1931, 1934 and 1961 Bragg was invited to deliver the [[Royal Institution Christmas Lectures|Royal Institution Christmas Lecture]] on ''The Universe of Light'', ''Electricity'' and ''Electricity''.  He also introduced the Schools' Lectures Program during his time at the Royal Institution.<ref>http://www.rigb.org/our-history/people/b/william-lawrence-bragg</ref>
 
===Personal life===
He married Alice Hopkinson (1899-1989) in 1921; she was a cousin of Bragg's friend [[Rudolph Cecil Hopkinson]], killed in WWI. They had four children, Stephen Lawrence (born 1923), David William (born 1926), Margaret Alice, born 1931, (who married [[Mark Heath]]) and Patience Mary, born 1935. Bragg's hobbies included painting, literature and a lifelong interest in gardening.<ref>{{cite journal|last=Thomson|first=Patience|title=A tribute to W. L. Bragg by his younger daughter|journal=Acta Crystallographica Section A|year=2013|volume=A69|pages=5–7|accessdate=24 December 2012|url=http://journals.iucr.org/a/issues/2013/01/00/wl0018/wl0018.pdf}}</ref> When he moved to London, he missed having a garden and so worked as a part-time gardener, unrecognised by his employer, until a guest at the house expressed surprise at seeing him there.<ref>{{cite book
|title=What Mad Pursuit
|first=Francis
|last=Crick
|page=53
|isbn=0140119736
|publisher=Weidenfeld & Nicholson
|year=1989
}}</ref> He died at a hospital near his home at [[Waldringfield]], [[Ipswich]], Suffolk. He was buried in [[Trinity College, Cambridge]]; his son David is buried in the [[Ascension Parish Burial Ground, Cambridge|Parish of the Ascension Burial Ground]] in Cambridge, where Bragg's friend Rudolph Cecil Hopkinson is also buried.
 
==Honours and awards==
He was elected an [[Royal Society#Fellows|FRS]] in 1921—"a qualification that makes other ones irrelevant".<ref>G K Hunter 2004 ''Light is a Messenger'' Oxford:OUP</ref> He was [[Knight Bachelor|knighted]] by [[King George VI]] in the 1941 [[New Year Honours]],<ref>{{London Gazette |issue=35029 |supp=yes |startpage=1 |date=31 December 1940 |accessdate=2 September 2010}} ''Knight bachelor''</ref> and received both the [[Copley Medal]] and the [[Royal Medal]] of the [[Royal Society]]. Although Hunter, in his book on Bragg ''Light is a Messenger'', argued that he was more a crystallographer than a physicist, Bragg's lifelong activity showed otherwise—he was more of a physicist than anything else. Thus, from 1939 to 1943, he served as President of the [[Institute of Physics]], London.<ref>http://www.cambridgephysics.org</ref> In the 1967 New Year Honours he was appointed [[Companion of Honour]] by Queen Elizabeth II.<ref>{{London Gazette |issue=44210 |supp=yes |startpage=26 |date=30 December 1966 |accessdate=2 September 2010}} ''CH''</ref>
 
Since 1992, the [[Australian Institute of Physics]] has awarded the Bragg Gold Medal for Excellence in Physics<ref>[http://www.aip.org.au/content/bragg Bragg Gold Medal for Excellence in Physics]</ref> to commemorate Sir Lawrence Bragg (in front on the medal) and his father, Sir William Bragg, for the best PhD thesis by a student at an [[List of universities in Australia|Australian university]].
 
* Nobel Prize (1915)
* [[Matteucci Medal]] (1915)
* [[Hughes Medal]] (1931)
* [[Royal Medal]] (1946)
* [[Guthrie Medal and Prize|Guthrie Lecture]] (1952)
* [[Copley Medal]] (1966)
 
==Quotations==
“The gift of expression is important to them as scientists; the best research is wasted when it is extremely difficult to discover what it is all about ... It is even more important when scientists are called upon to play their part in the world of affairs, as is happening to an increasing extent.”<ref>[[Ernest Gowers|Gowers, E.]], ''The Complete Plain Words'', Godine, 1988. ISBN 1-56792-203-1.</ref>
 
"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."<ref>http://quotationsbook.com/quote/20045/</ref>
 
==See also==
*[[Artillery in World War I|Tactical Artillery Terms from World War I]]
* [[List of Nobel laureates in Physics]]
 
==References==
{{reflist|colwidth=30em}}
 
==Further reading==
*Biography: Hunter, Graeme. ''Light Is A Messenger, the Life and Science of William Lawrence Bragg'', ISBN 0-19-852921-X; Oxford University Press, 2004.
* John Finch; ''A Nobel Fellow On Every Floor'', Medical Research Council 2008, 381 pp, ISBN 978-1-84046-940-0; (This book is about the MRC Laboratory of Molecular Biology, Cambridge.)
*Ridley, Matt; ''Francis Crick: Discoverer of the Genetic Code (Eminent Lives)'', first published in July 2006 in the United States, and then in the UK in September 2006, by HarperCollins Publishers; 192 pp, ISBN 0-06-082333-X (This short book is in the publisher's "Eminent Lives" series).
*John Jenkin: "William and Lawrence Bragg, Father and Son: The Most Extraordinary Collaboration in Science", Oxford University Press, 2008.
 
==External links==
* [http://www.packer34.freeserve.co.uk/selectedTATAwebsites.htm First press stories on DNA]
* [http://nobelprize.org/nobel_prizes/physics/laureates/1915/index.html Nobelprize.org – The Nobel Prize for Physics in 1915]
* [http://nobelprize.org/nobel_prizes/physics/laureates/1915/wl-bragg-bio.html Nobel Biography]
* [http://osulibrary.oregonstate.edu/specialcollections/coll/pauling/bond/people/bragg.html A collection] of digitised materials related to Bragg's and [[Linus Pauling]]'s structural chemistry research.
* [http://osulibrary.oregonstate.edu/specialcollections/coll/pauling/dna/people/bragg.html Key Participants: Sir William Lawrence Bragg] – ''Linus Pauling and the Race for DNA: A Documentary History''
* [http://www.pbs.org/wgbh/nova/photo51/ NOVA Episode on Photograph 51]
* [http://www.aip.org/history/ohilist/28531.html Oral History interview transcript with William Lawrence Bragg 20 June 1969, American Institute of Physics, Niels Bohr Library and Archives]
* [http://nla.gov.au/nla.party-458785 Bragg, Lawrence (Sir) (1890–1971)] National Library of Australia, ''Trove, People and Organisation'' record for William Lawrence Bragg
*[http://richannel.org/the-nature-of-things--oil-soap-and-detergent The Nature of Things: Oil, Soap and Detergent], Ri Channel video, November 1959
*[http://www.richannel.org/the-nature-of-things--atoms-and-molecules The Nature of Things: Atoms and Molecules], Ri Channel video, October 1959
*[http://www.richannel.org/the-nature-of-things--solids-liquids-and-gases The Nature of Things: Solids, Liquids and Gases], Ri Channel video, November 1959
 
{{Copley Medallists 1951-2000}}
{{Nobel Prize in Physics Laureates 1901-1925}}
 
{{Authority control |VIAF=49306596 |LCCN=n/79/109781 |GND=119560275 }}
 
{{Persondata
|NAME=Bragg, William Lawrence
|ALTERNATIVE NAMES=
|SHORT DESCRIPTION=English[[physicist]], Nobel Prize for Physiology or Medicine
|DATE OF BIRTH=31 March 1890
|PLACE OF BIRTH=[[North Adelaide]], South Australia
|DATE OF DEATH=1 July 1971
|PLACE OF DEATH=[[Waldringfield]], Suffolk, England}}
{{DEFAULTSORT:Bragg, William Lawrence}}
[[Category:1890 births]]
[[Category:1971 deaths]]
[[Category:Academics of the Victoria University of Manchester]]
[[Category:Alumni of Trinity College, Cambridge]]
[[Category:Australian Nobel laureates]]
[[Category:Nobel laureates in Physics]]
[[Category:Australian people of English descent]]
[[Category:Australian physicists]]
[[Category:English physicists]]
[[Category:Experimental physicists]]
[[Category:Optical physicists]]
[[Category:Fellows of the Royal Society]]
[[Category:Knights Bachelor]]
[[Category:Australian knights]]
[[Category:Members of the Order of the Companions of Honour]]
[[Category:Officers of the Order of the British Empire]]
[[Category:People from Adelaide]]
[[Category:People from Ipswich]]
[[Category:Recipients of the Copley Medal]]
[[Category:Recipients of the Military Cross]]
[[Category:Royal Medal winners]]
[[Category:University of Adelaide alumni]]
[[Category:Jubilee 150 Walkway]]
[[Category:People educated at St Peter's College, Adelaide]]
[[Category:Presidents of the Institute of Physics]]
[[Category:X-ray crystallography]]
[[Category:Crystallographers]]
[[Category:English Nobel laureates]]
[[Category:Honorary Fellows of the Royal Society of Edinburgh]]
 
{{Link FA|he}}

Revision as of 05:24, 3 February 2014

29 yr old Orthopaedic Surgeon Grippo from Saint-Paul, spends time with interests including model railways, top property developers in singapore developers in singapore and dolls. Finished a cruise ship experience that included passing by Runic Stones and Church. Template:Use British English 30 year-old Entertainer or Range Artist Wesley from Drumheller, really loves vehicle, property developers properties for sale in singapore singapore and horse racing. Finds inspiration by traveling to Works of Antoni Gaudí.

Template:Infobox scientist

Sir William Lawrence Bragg CH OBE MC FRS[1] (31 March 1890 – 1 July 1971) was an Australian-born British physicist and X-ray crystallographer, discoverer (1912) of the Bragg law of X-ray diffraction, which is basic for the determination of crystal structure. He was joint winner (with his father, Sir William Bragg) of the Nobel Prize for Physics in 1915: "For their services in the analysis of crystal structure by means of X-ray"[2] an important step in the development of X-ray crystallography. He was knighted in 1941. To date, Lawrence Bragg is the youngest Nobel Laureate, having received the award at the age of 25.[3] He was the director of the Cavendish Laboratory, Cambridge, when the epochal discovery of the structure of DNA was reported by James D. Watson and Francis Crick in February 1953.

Biography

Early years

Bragg was born in North Adelaide, South Australia. He showed an early interest in science and mathematics. His father, William Henry Bragg, was Elder Professor of Mathematics and Physics at the University of Adelaide. Shortly after starting school aged 5, William Lawrence Bragg fell from his tricycle and broke his arm. His father, who had read about Röntgen's experiments in Europe and was performing his own experiments, used the newly discovered X-rays and his experimental equipment to examine the broken arm. This is the first recorded surgical use of X-rays in Australia.

Bragg was a very able student. After beginning his studies at St Peter's College, Adelaide in 1904 he went to the University of Adelaide at age 14 to study mathematics, chemistry and physics, graduating in 1908. In the same year his father accepted the Cavendish chair of physics at the University of Leeds, and brought the family back to England. Bragg entered Trinity College, Cambridge in the autumn of 1909 and received a major scholarship in mathematics, despite taking the exam while in bed with pneumonia. After initially excelling in mathematics, he transferred to the physics course in the later years of his studies, and graduated with first class honours in 1911. In 1914 Bragg was elected to a Fellowship at Trinity College – a Fellowship at a Cambridge college involves the submission and defence of a thesis.[4][5]

Among Bragg's other interests was shell collecting; his personal collection amounted to specimens from some 500 species; all personally collected from South Australia. He discovered a new species of cuttlefish - Sepia braggi, named for him by Joseph Verco.[6]

Career

Work on X-ray crystallography

The first X-ray spectrometer designed by Sir William Lawrence Bragg

Bragg is most famous for his law on the diffraction of X-rays by crystals. Bragg's law makes it possible to calculate the positions of the atoms within a crystal from the way in which an X-ray beam is diffracted by the crystal lattice. He made this discovery in 1912, during his first year as a research student in Cambridge. He discussed his ideas with his father, who developed the X-ray spectrometer in Leeds. This tool allowed many different types of crystals to be analysed.

Work on sound ranging

Bragg's research work was interrupted by both World War I and World War II. During both wars he worked on sound ranging methods for locating enemy guns. In this work he was aided by William Sansome Tucker, Harold Roper Robinson and Henry Harold Hemming. For his work during WWI he was awarded the Military Cross[7] and appointed Officer of the Order of the British Empire.[8] He was also Mentioned in Despatches on 16 June 1916, 4 January 1917 and 7 July 1919.[9][10][11][12]

On 2 September 1915 his brother was killed during the Gallipoli Campaign.[13] Shortly afterwards, William Lawrence Bragg received the news that he had been awarded the Nobel Prize in Physics, aged 25, making him the youngest ever winner of a Nobel Prize.[12]

Between the wars, from 1919 to 1937, he worked at the Victoria University of Manchester as Langworthy Professor of Physics. After World War II, he returned to Cambridge, splitting the Cavendish Laboratory into research groups. He believed that "the ideal research unit is one of six to twelve scientists and a few assistants".

Work on proteins

In 1948 he became interested in the structure of proteins and was partly responsible for creating a group that used physics to solve biological problems. He played a part in the 1953 discovery of the structure of DNA, in that he provided support to Francis Crick and James D. Watson who worked under his aegis at the Cavendish.

Bragg's original announcement of the discovery of the structure of DNA was made at a Solvay conference on proteins in Belgium on 8 April 1953, but went unreported by the press. He then gave a talk at Guys Hospital Medical School in London on Thursday 14 May 1953, which resulted in an article by Ritchie Calder in The News Chronicle of London on Friday 15 May 1953, entitled "Why You Are You. Nearer Secret of Life."

Bragg was gratified to see that the X-ray method that he developed forty years before was at the heart of this profound insight to the nature of life itself. At the same time at the Cavendish, Max Perutz was also doing his Nobel Prize winning work on the structure of haemoglobin. Bragg subsequently successfully lobbied for, and nominated, Crick, Watson and Maurice Wilkins for the 1962 Nobel Prize in Physiology or Medicine; Wilkins' share recognised the contribution made by researchers (using X-ray crystallography) at King's College London to the determination of the structure of DNA. Among those researchers was Rosalind Franklin, whose "photograph 51" showed that DNA was a double helix, not a triple helix as Linus Pauling had proposed. Franklin died before the prize (which only goes to living people) was awarded.

The crystal structure of hen egg white lysozyme, which was solved by D C Phillips et al. in 1965[14] under the directorship of Lawrence Bragg at the Royal Institution, London, led to the discovery of the helix. The lysozyme structure was determined from crystals of hen egg white lysozyme chloride, which belong to the tetragonal space group P2 with the unit cell dimensions a = b = 79.1 Å, c = 37.9 Å and have one lysozyme molecule in the asymmetric unit.[14] The existence of the helix, as opposed to Pauling's alpha helix, was predicted by W L Bragg, J C Kendrew & M F Perutz in 1950.[15] Apparently, many workers failed to mention the discovery of the helix, and failed to acknowledge the part it plays in the lysozyme structure. Pauling never acknowledged that at least part of the above mentioned 1950 paper made sense.

Unlike myoglobin, in which nearly 80 per cent of the amino-acid residues are in the alpha-helix conformation, in the lysozyme protein the alpha-helix content is only about 40 per cent of the amino-acid residues in four main stretches. The helix is an earlier proposal for the structure of polypeptides made by Bragg W L, Kendrew J C & Perutz M F in 1950. It is based on the crystallographic idea of an integral number of residues per turn of the helix. In this conformation, every third peptide is hydrogen-bonded back to the first peptide, thus forming a ring containing ten atoms.[16]

Royal Institution

He had a long association with the Royal Institution including:

   Professor of Natural Philosophy, 1938-1953
   Fullerian Professor of Chemistry, 1954-1966
   Superintendent of the House, 1954-1966
   Director of the Davy-Faraday Research Laboratory, 1954-1966
   Director, 1965-1966
   Emeritus Professor, 1966-1971

In 1931, 1934 and 1961 Bragg was invited to deliver the Royal Institution Christmas Lecture on The Universe of Light, Electricity and Electricity. He also introduced the Schools' Lectures Program during his time at the Royal Institution.[17]

Personal life

He married Alice Hopkinson (1899-1989) in 1921; she was a cousin of Bragg's friend Rudolph Cecil Hopkinson, killed in WWI. They had four children, Stephen Lawrence (born 1923), David William (born 1926), Margaret Alice, born 1931, (who married Mark Heath) and Patience Mary, born 1935. Bragg's hobbies included painting, literature and a lifelong interest in gardening.[18] When he moved to London, he missed having a garden and so worked as a part-time gardener, unrecognised by his employer, until a guest at the house expressed surprise at seeing him there.[19] He died at a hospital near his home at Waldringfield, Ipswich, Suffolk. He was buried in Trinity College, Cambridge; his son David is buried in the Parish of the Ascension Burial Ground in Cambridge, where Bragg's friend Rudolph Cecil Hopkinson is also buried.

Honours and awards

He was elected an FRS in 1921—"a qualification that makes other ones irrelevant".[20] He was knighted by King George VI in the 1941 New Year Honours,[21] and received both the Copley Medal and the Royal Medal of the Royal Society. Although Hunter, in his book on Bragg Light is a Messenger, argued that he was more a crystallographer than a physicist, Bragg's lifelong activity showed otherwise—he was more of a physicist than anything else. Thus, from 1939 to 1943, he served as President of the Institute of Physics, London.[22] In the 1967 New Year Honours he was appointed Companion of Honour by Queen Elizabeth II.[23]

Since 1992, the Australian Institute of Physics has awarded the Bragg Gold Medal for Excellence in Physics[24] to commemorate Sir Lawrence Bragg (in front on the medal) and his father, Sir William Bragg, for the best PhD thesis by a student at an Australian university.

Quotations

“The gift of expression is important to them as scientists; the best research is wasted when it is extremely difficult to discover what it is all about ... It is even more important when scientists are called upon to play their part in the world of affairs, as is happening to an increasing extent.”[25]

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."[26]

See also

References

43 year old Petroleum Engineer Harry from Deep River, usually spends time with hobbies and interests like renting movies, property developers in singapore new condominium and vehicle racing. Constantly enjoys going to destinations like Camino Real de Tierra Adentro.

Further reading

  • Biography: Hunter, Graeme. Light Is A Messenger, the Life and Science of William Lawrence Bragg, ISBN 0-19-852921-X; Oxford University Press, 2004.
  • John Finch; A Nobel Fellow On Every Floor, Medical Research Council 2008, 381 pp, ISBN 978-1-84046-940-0; (This book is about the MRC Laboratory of Molecular Biology, Cambridge.)
  • Ridley, Matt; Francis Crick: Discoverer of the Genetic Code (Eminent Lives), first published in July 2006 in the United States, and then in the UK in September 2006, by HarperCollins Publishers; 192 pp, ISBN 0-06-082333-X (This short book is in the publisher's "Eminent Lives" series).
  • John Jenkin: "William and Lawrence Bragg, Father and Son: The Most Extraordinary Collaboration in Science", Oxford University Press, 2008.

External links

Template:Copley Medallists 1951-2000 Template:Nobel Prize in Physics Laureates 1901-1925

In the event you've just lately been requested by your employer to be posted to Singapore, then this website is for you. Whether or not you're single or married with kids, whether or not you are looking for a condominium, a bungalow, a semi-detached or a public condo, residing and renting a house in Singapore at this time is straightforward when you recognize the ins and outs, the dos and don'ts.

He is a rip-off!! Severely trust me he's on of the scammer agent. He made me believe that I've a spot to remain then when I was about to move the place isn't out there. Then he just took my deposit and agent's charge. By the best way he's also the landlord of the place i am presupposed to lease. He took my money and ran away. However I went to the HDB and complain him, additionally I complain straight to the police. Then the police called him and he got scared. Finally each penny that I gave him, he give it again since HDB and police office is supporting me. Don't be lazy to complain. Go straight to the police and complain these individuals.

i imagine there are good ethical brokers in Singapore. But i have encounter unhealthy experiencing the Christina Fong from realty master. She is admittedly an unprofessional and never moral one. Only considering of undercutiing and squeezing money from ptther people without defending interest of her personal shopper. Proceed to the section Training and look at a map of all worldwide colleges in Singapore or visit the section residential areas for detailed data on the place to stay and why. Information District and Location Have completed no less than 30 property transactions up to now three years. At least 10 of these transactions will have to be for private properties, and at the very least one other 10 needs to be for HDB flats (also known as public housing); Singapore-Indonesia Commercial Affiliation

Agents need to be very resourceful and so they have to work doubly onerous to succeed in out to extra consumers as a result of when the market swings, it turns into very aggressive," said PropNex Chief Executive Mohamed Ismail. "Beforehand, an agent might focus on one space, comparable to HDB, however at this time you may't." An motion for misrepresentation arises beneath the law of tort. A Misrepresentation happens when the Representor (Property Agent) makes a false assertion of existing truth with data of its falsity and with the intention that the Representee (Buyer or Seller) ought to act on it with the consequence that the Representee does act on it to his detriment. Metropolis & South West (D01-08) Tiong Bahru MRT Quiet C/Room F/Furnished w AC No Agent Price

On February 19 we had an appointment with the proprietor and his agent (A and H!) at the condominium to hand over the keys. They went by means of all the things with a wonderful tooth comb. An important lesson we learned over all this is that you simply MUST ENGAGE YOUR PERSONAL AGENT and never rely on the homeowners agent as his priority is to the proprietor not you. Nevertheless, last night time my own agent called me and informed me suddenly that ECG instructed them a buyer goes handy them a check within the morning, so we higher act fast or we may lose the property. Stamp responsibility is to be paid inside 14 days from the date of acceptance of the OTP or Sale and buy a house in singapore (click hyperlink) (S&P) Settlement. For more information, please go to www.iras.gov.sg - Gown Up Your House Woodlands East Industrial & Industrial Affiliation

There may also be a Code of Ethics and a Skilled Conduct Commonplace, as well as the introduction of disciplinary motion in opposition to errant brokers/businesses and dispute decision mechanisms. Preparations shall be made to manage the transition of existing agencies and agents to these new standards, which have but to be finalized. The Proposed Enchancment in High quality for Actual Property Businesses Wheelock Properties put up 95 items of The Panorama in Ang Mo Kio for balloting. With a reduction of 12 p.c, they claimed to promote 80 to eighty five units. Whereas developers are clearing their existing stock, every month there are new projects acquiring their HIGH and new sites released by the government to construct more private housing. The due date of each rental payment; or

To know who pays actual property commissions - whether or not it's sellers or buyers or both or if it is Landlord's or Tenant's or both Divisions vary. All Brokers work on a commission scheme that is determined by the experience, efficiency and various other elements equivalent to recruitment and many others. New brokers can receive from a range of 60%-70% of the full fee received by them from the closure of a deal. High producing brokers would possibly obtain 100% and pay the company (broker) a desk fee. Everybody else falls somewhere in between. Kindly discuss with the FAQ part of the CEA web site-www.cea.gov.sg Co-Broking / sharing of fee There isn't a set formulation. This is based on the demand and supply circumstances in the market. present agents have tertiary education.

Template:Persondata

Real Estate Agent Renaldo Lester from Saint-Jean-Chrysostome, has several hobbies which include leathercrafting, property developers in singapore apartment for sale, this contact form, and crochet. Loves to see new cities and places like Ruins of Loropéni.

  1. Template:Cite doi
  2. Template:Cite web
  3. Template:Cite web
  4. Cambridge physicists www.cambridgephysics.org
  5. See Fred Hoyle's remarks regarding Hutchinson in 1965 Galaxies, Nuclei and Quasars p38 London:Heinemann and also R J N Phillips 1987 "Some Words from a Former Student" in Tribute to Paul Dirac, p31 Bristol:Adam Hilger
  6. Jenkin, John William and Lawrence Bragg; Father and Son. Oxford University Press 2008 ISBN 978 0 19 923520 9
  7. Template:London Gazette MC
  8. Template:London Gazette OBE
  9. Template:London Gazette mid
  10. Template:London Gazette mid
  11. Template:London Gazette mid
  12. 12.0 12.1 William Van der Kloot, Lawrence Bragg's role in the development of sound-ranging in World War I, Notes and Records of the Royal Society, 22 September 2005, vol. 59, no. 3, pp. 273–284.
  13. Template:Cwgc
  14. 14.0 14.1 CCF Blake, DF Keonig, GA Mair, ACT North, DC Phillips & VR Sarma, Structure of Hen Egg-White Lysozyme: A Three-dimensional Fourier Synthesis at 2 Å Resolution. (1965) Nature 206:757-761
  15. 1950 "Polypeptide chain configurations in crystalline proteins" Proc Roy A 203, p321
  16. L N Johnson (1966) “The structure and function of lyszoyme” Sci Prog 54, p367
  17. http://www.rigb.org/our-history/people/b/william-lawrence-bragg
  18. One of the biggest reasons investing in a Singapore new launch is an effective things is as a result of it is doable to be lent massive quantities of money at very low interest rates that you should utilize to purchase it. Then, if property values continue to go up, then you'll get a really high return on funding (ROI). Simply make sure you purchase one of the higher properties, reminiscent of the ones at Fernvale the Riverbank or any Singapore landed property Get Earnings by means of Renting

    In its statement, the singapore property listing - website link, government claimed that the majority citizens buying their first residence won't be hurt by the new measures. Some concessions can even be prolonged to chose teams of consumers, similar to married couples with a minimum of one Singaporean partner who are purchasing their second property so long as they intend to promote their first residential property. Lower the LTV limit on housing loans granted by monetary establishments regulated by MAS from 70% to 60% for property purchasers who are individuals with a number of outstanding housing loans on the time of the brand new housing purchase. Singapore Property Measures - 30 August 2010 The most popular seek for the number of bedrooms in Singapore is 4, followed by 2 and three. Lush Acres EC @ Sengkang

    Discover out more about real estate funding in the area, together with info on international funding incentives and property possession. Many Singaporeans have been investing in property across the causeway in recent years, attracted by comparatively low prices. However, those who need to exit their investments quickly are likely to face significant challenges when trying to sell their property – and could finally be stuck with a property they can't sell. Career improvement programmes, in-house valuation, auctions and administrative help, venture advertising and marketing, skilled talks and traisning are continuously planned for the sales associates to help them obtain better outcomes for his or her shoppers while at Knight Frank Singapore. No change Present Rules

    Extending the tax exemption would help. The exemption, which may be as a lot as $2 million per family, covers individuals who negotiate a principal reduction on their existing mortgage, sell their house short (i.e., for lower than the excellent loans), or take part in a foreclosure course of. An extension of theexemption would seem like a common-sense means to assist stabilize the housing market, but the political turmoil around the fiscal-cliff negotiations means widespread sense could not win out. Home Minority Chief Nancy Pelosi (D-Calif.) believes that the mortgage relief provision will be on the table during the grand-cut price talks, in response to communications director Nadeam Elshami. Buying or promoting of blue mild bulbs is unlawful.

    A vendor's stamp duty has been launched on industrial property for the primary time, at rates ranging from 5 per cent to 15 per cent. The Authorities might be trying to reassure the market that they aren't in opposition to foreigners and PRs investing in Singapore's property market. They imposed these measures because of extenuating components available in the market." The sale of new dual-key EC models will even be restricted to multi-generational households only. The models have two separate entrances, permitting grandparents, for example, to dwell separately. The vendor's stamp obligation takes effect right this moment and applies to industrial property and plots which might be offered inside three years of the date of buy. JLL named Best Performing Property Brand for second year running

    The data offered is for normal info purposes only and isn't supposed to be personalised investment or monetary advice. Motley Fool Singapore contributor Stanley Lim would not personal shares in any corporations talked about. Singapore private home costs increased by 1.eight% within the fourth quarter of 2012, up from 0.6% within the earlier quarter. Resale prices of government-built HDB residences which are usually bought by Singaporeans, elevated by 2.5%, quarter on quarter, the quickest acquire in five quarters. And industrial property, prices are actually double the levels of three years ago. No withholding tax in the event you sell your property. All your local information regarding vital HDB policies, condominium launches, land growth, commercial property and more

    There are various methods to go about discovering the precise property. Some local newspapers (together with the Straits Instances ) have categorised property sections and many local property brokers have websites. Now there are some specifics to consider when buying a 'new launch' rental. Intended use of the unit Every sale begins with 10 p.c low cost for finish of season sale; changes to 20 % discount storewide; follows by additional reduction of fiftyand ends with last discount of 70 % or extra. Typically there is even a warehouse sale or transferring out sale with huge mark-down of costs for stock clearance. Deborah Regulation from Expat Realtor shares her property market update, plus prime rental residences and houses at the moment available to lease Esparina EC @ Sengkang
  19. 20 year-old Real Estate Agent Rusty from Saint-Paul, has hobbies and interests which includes monopoly, property developers in singapore and poker. Will soon undertake a contiki trip that may include going to the Lower Valley of the Omo.

    My blog: http://www.primaboinca.com/view_profile.php?userid=5889534
  20. G K Hunter 2004 Light is a Messenger Oxford:OUP
  21. Template:London Gazette Knight bachelor
  22. http://www.cambridgephysics.org
  23. Template:London Gazette CH
  24. Bragg Gold Medal for Excellence in Physics
  25. Gowers, E., The Complete Plain Words, Godine, 1988. ISBN 1-56792-203-1.
  26. http://quotationsbook.com/quote/20045/