Francis William Aston

Francis William Aston - Factbites
Where results make sense
About us | Why use us? | Reviews | PR | Contact us

Topic: Francis William Aston

Note: these results are not from the primary (high quality) database.

In the News (Fri 4 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	ASTON, FRANCIS WILLIAM (1877 - 1945)
		Aston's invention of the mass spectrograph, an instrument giving a concentrated and extremely detailed breakdown of the constituents of analyzed material, enabled him to discover that elements are composed of atoms of varying mass, and that the atomic weight of an element is an average of the atoms comprising it.
		Aston was awarded the Nobel Prize for chemistry in 1922 "for his discovery, by means of his mass spectrograph, of the isotopes of a large number of non-radioactive elements, as well as for his discovery of the whole-number rule."
		Aston used the word "isotopes" to describe atoms of differing weights within the same element, a term first coined by Frederick Soddy to describe separate elements that are nevertheless homogeneous in chemical behavior.
	www.scs.uiuc.edu /~mainzv/exhibit/aston.htm (130 words)

	Francis William Aston - Wikipedia, the free encyclopedia
		Francis William Aston (born Birmingham, September 1, 1877; died Cambridge, November 20, 1945) was a British physicist who won the 1922 Nobel Prize in Chemistry for the invention of the mass spectrometer.
		In 1903 he won a scholarship to the University of Birmingham and it was in his studies of electronic discharge tubes there that he discovered the phenomenon now known as the Aston Dark Space.
		In 1909 he moved to the Cavendish Laboratory in Cambridge on the invitation of J.J. Thomson and worked on the identification of isotopes of the element neon.
	en.wikipedia.org /wiki/Francis_William_Aston (215 words)

	Aston, Francis William
		Aston was trained as a chemist, but, upon the rebirth of physics following the discovery of X rays in 1895 and of radioactivity in 1896, he began in 1903 to study the creation of X rays by the flow of current through a gas-filled tube.
		Aston's achievement is illustrated by the fact that he discovered 212 of the 287 naturally occurring nuclides.
		Aston used the mass spectrograph to discover a large number of nuclides, or nuclear species that differ in mass.
	www.britannica.com /nobel/micro/38_30.html (226 words)

	Fathom :: The Source for Online Learning
		Francis William Aston established the isotopes of the non-radioactive elements and in 1922 won the Nobel prize for Chemistry for his ground-breaking work.
		Aston devised several methods of calibrating his instrument and in the case of neon obtained mass lines on his photographic plate at 20 and 22 with the intensities of the lines showing that the two particles occurred in the ratio of 10:1, consistent with an average mass of 20.20, the known atomic weight of neon.
		Aston was given the task of improving Thomson's apparatus in which a beam of positively charged particles (positive rays) were deflected by a combination of electric and magnetic fields into sharp visible curves, each representing an individual particle's charge-to-mass ratio.
	www.fathom.com /feature/122356 (848 words)

	Treasures - Astons Mass Spectograph (1919)
		Whilst working at the Cavendish Laboratory in Cambridge under J J Thomson, Francis William Aston (1877-1945) undertook a series of experiments that led to the discoveries by which he is now best remembered.
		Aston devised several methods for calibrating his instrument and, in the case of neon, obtained mass lines on his photographic plate at 20 and 22 with the intensities of the lines showing that the two particles occurred in the ratio of 10:1, consistent with an average mass of 20.20, the known atomic weight of neon.
		Aston was assigned to improving Thomson's apparatus in which a beam of positively-charged particles (positive rays) was deflected by a combination of electric and magnetic fields into sharp visible curves, each representing an individual particle's charge-to-mass ratio.
	www.sciencemuseum.org.uk /collections/treasures/aston2.asp?showinfo=yes (229 words)

	Cambridge Physics - Splitting the Atom
		Aston was first educated at Harborne Vicarage School, but began to study science at Malvern College, where he demonstrated his ability in chemistry, physics and mathematics.
		Aston's work was interrupted by the First World War, when he worked as a chemist at Farnborough in the Royal Aircraft Factory, investigating the canvas used to cover aeroplanes.
		Aston had been recommended to Thomson by his former teacher Poynting, and was happy to accept the Cambridge post which would leave him more time for research.
	www.phy.cam.ac.uk /camphy/physicists/physicists_aston.htm (944 words)

	Francis W. Aston - Biography
		Francis William Aston was born in September 1877 at Harborne, Birmingham, England, the third of a family of seven children.
		Aston, a bachelor, was an enthusiastic sportsman; skiing, rock climbing, tennis and swimming were among the sports in which he excelled.
		Aston was elected to a Fellowship at Trinity College in 1920, in which year he also received the Mackenzie Davidson Medal of the Röntgen Society.
	nobelprize.org /chemistry/laureates/1922/aston-bio.html (715 words)

	Francis William Aston - Wikipédia
		Francis William Aston (1 de setembro de 1877, Birmingham, Inglaterra - 20 de novembro de 1945, Londres) foi um físico e químico britânico.
	pt.wikipedia.org /wiki/Francis_William_Aston (228 words)

	Nuclear Files: Library: Biographies: Francis William Aston
		Born in Birmingham, England in September 1877, Francis William Aston was fascinated by science at an early age.
		Francis William Aston died in Cambridge on 20 November 1945.
		Aston won the Forster Scholarship in 1898, allowing him to conduct research that was published in 1901.
	www.nuclearfiles.org /menu/library/biographies/bio_aston-francis.htm (209 words)

	Aston, Francis William
		Aston's mass spectrograph showed that most stable elements were a mixture of isotopes, differing in mass but not in chemical properties.
		Aston studied chemistry at the University of Birmingham.
		Aston was awarded the Nobel Prize in 1922.
	www.euchems.org /Distinguished/20thCentury/astonfrancis.asp (97 words)

	Paul Kuroda Fellowship -- Biography
		In 1936 when Kuroda was 19, Francis William Aston visited Japan and gave a special lecture on "Mass Spectra and Isotopes".
		Kuroda was greatly impressed and decided to study under Francis Aston, after graduating from the Imperial University of Tokyo.
		He realized at once that the mass-spectrometer invented by Aston would play a key role in chemistry in the future, but he was disappointed to find that professors of chemistry in those days seemed to regard it as a tool for physicists, not for chemists.
	ua-cheme.engr.uark.edu /kuroda/bio.htm (1074 words)

	William Francis Giauque, May 12, 1895—March 28, 1982 By Kenneth S. Pitzer and David A. Shirley Biographical Memoirs
		WILLIAM FRANCIS GIAUQUE is remembered particularly for his discovery of adiabatic demagnetization as a means to reach very low temperatures as well as for his exhaustive and meticulous thermodynamic studies, over a lifetime of research, which utilized the third law of thermodynamics while also developing a large body of evidence for its validity.
		This connection had a pivotal role in William Francis Giauque's later education and career.
		The union produced two sons, William Francis Ashley Giauque and Robert David Ashley Giauque, and four grandchildren.
	www.nap.edu /readingroom/books/biomems/wgiauque.html (3976 words)

	Guide A
		Francis William Aston was born at Harborne, near Birmingham on 1 September 1877.
		Aston’s research was interrupted by the First World War during which he worked at the Royal Aircraft Establishment, Farnborough, principally on aircraft fabrics and dopes (synthetic coatings).
		Aston’s interests in astronomy and photography led to his membership of expeditions that studied eclipses in Sumatra (1925), Canada (1932) and Japan (1936).
	www.bath.ac.uk /ncuacs/guidea.htm (5060 words)

	Francis William Aston
		Aston expressed atomic masses in terms of the nuclear
	web.umr.edu /~om/Photographs/Aston_desc.htm (9 words)

	Francis William Aston - Wikipedia
		Literatur von und über Francis William Aston im Katalog der DDB
		Nach ihm ist die "Astonsche Regel" oder "Isotopenregel" benannt, diese besagt: Chemische Elemente mit ungerader Ordnungszahl haben nie mehr als zwei stabile Isotope, solche mit gerader Ordnungszahl besitzen hingegen oft bedeutend mehr.
	de.wikipedia.org /wiki/Francis_William_Aston (75 words)

	Aston -- Facts, Info, and Encyclopedia article
		Aston is a district of (A city in central England; 2nd largest English city and an important industrial and transportation center) Birmingham in (A division of the United Kingdom) England, though when both were towns it was for some time the larger of the two.
		This article is about the district of (Click link for more info and facts about Aston) Aston in (A city in central England; 2nd largest English city and an important industrial and transportation center) Birmingham, (A division of the United Kingdom) England.
		For other places called Aston and other uses, see (Click link for more info and facts about Aston (disambiguation)) Aston (disambiguation).
	www.absoluteastronomy.com /encyclopedia/A/As/Aston.htm (182 words)

	Robert Walker - walg04.htm - Generated by Personal Ancestral File
		Francis William Kenrick Raymond was born in 1894.
		William Louis Sievers (Charlotte Walker, William, Robert William) was born in 1851 in Wellington, New Zealand.
		William Henry Sievers was born on 27 Sep 1874 in Wellington, New Zealand.
	www.vectis10w.freeserve.co.uk /walg04.htm (1227 words)

	Aston Aloha Surf Hotel
		Aston crater on the Moon,a formation with an eponym of Francis William Aston.
		Aston is a small suburbanized community direcly to the outskirts of the Philadelphia region, located in the Pennsylvanian Delaware County.
		Aston is a district of Birmingham in England, though when both were towns it was for some time the larger of the two.
	www.witchware.com /File/19086-Aston.Aloha.Surf.Hotel.Html (1019 words)

	aston.html
		Aston returned to Cambridge after Word War I and constructed a new type of mass spectrograph and discovered the existence of isotopes in many elements (of 281 naturally-occurring isotopes, Aston discovered 212).
		He also calculated atomic weights from nuclidic masses and abundances, and brought about the use in physics of the mass of oxygen-16 as exactly 16, whence all other elements had nearly integer masses.
		In 1909 he became an assistant to J. Thomson at Cambridge and worked with him on many studies with the parabola mass spectroscope.
	www.chem.uky.edu /courses/che105/biografy/aston.html (153 words)

	The Hutchinson Dictionary of Scientific Biography: Aston, Francis William (1877-1945)@ HighBeam Research
		The Hutchinson Dictionary of Scientific Biography: Aston, Francis William (1877-1945)@ HighBeam Research
		Aston was born on 1 September 1877 at Harbourne, Birmingham, the son of a merchant.
		For his unique contribution to analytic chemistry and the study of atomic theory he was awarded the 1922 Nobel Prize for Chemistry.
	www.highbeam.com /library/doc0.asp?DOCID=1P1:99915696&refid=ip_encyclopedia_hf (179 words)

	Francis William Aston (1877-1945)
		Francis William Aston, an experimental physicist, was born in Harborne, England, in September 1st 1877, and died in Cambridge, in November 20th 1945.
		His work is explained in his book Mass Spectra and Isotopes (1942).
	nautilus.fis.uc.pt /st2.5/scenes-e/biog/b0006.html (93 words)

	Aston, Francis William -- Encyclopædia Britannica
		More results on "Aston, Francis William" when you join.
		Aston used the mass spectograph to discover a large number of nuclides, or nuclear species that differ in mass.
		William Harvey's studies were the beginnings of the science of physiology.
	www.britannica.com /eb/article-9009981 (755 words)

	Francis William Aston -- Facts, Info, and Encyclopedia article
		Francis William Aston -- Facts, Info, and Encyclopedia article
		In 1903 he won a scholarship to the (Click link for more info and facts about University of Birmingham) University of Birmingham and it was in his studies of electronic discharge tubes there that he discovered the phenomenon now known as the Aston Dark Space.
	www.absoluteastronomy.com /encyclopedia/f/fr/francis_william_aston.htm (68 words)

	Francis Guillermo Aston
		English version: Francis William Aston Next: Concesión Del Lugar geométrico Up
		Francis Guillermo Aston (Birmingham llevada, de septiembre el 1 de 1877; Cambridge muerta, de noviembre 20 el 1945) era un físico británico que ganó el premio 1922 Nobel en la química para la invención del espectrómetro total.
		En 1903 él ganó una beca a la universidad de Birmingham y era en sus estudios de los tubos electrónicos de la descarga allí que él descubrió el fenómeno ahora conocido como el espacio de la obscuridad de Aston.
	www.yotor.net /wiki/es/fr/Francis%20Guillermo%20Aston.htm (230 words)

	Francis W. Aston
		Francis W. Aston a, bien entendu, fait de grandes études avant de débuter sa carrière de chercheur.
		Finalement, les recherches de Francis W. Aston ont fait avancer la chimie à pas de géant et les gens de ce milieu ont pu profiter, et en profitent encore, de cet héritage.
		Francis W. Aston est né à Harborne, en Angleterre, le 1
	mendeleiev.cyberscol.qc.ca /chimisterie/2002-2003/TBosseCote.html (940 words)

	Science NetLinks: Isotopes of Pennies
		Aston, Francis William - 1922 Nobel Biography, on the Nobel eMuseum website, provides information about Francis William Aston, the British chemist and physicist who won the 1922 Nobel Prize in Chemistry for discovering isotopes of elements by means of the mass spectrograph.
		In 1919, F. Aston separated neon atoms into two different isotopes, after he invented the mass spectrograph.
		Students can browse the website Pictorial Periodic Table to see the chart of all the elements and every known isotope.
	www.sciencenetlinks.com /lessons.cfm?DocID=176 (1225 words)

	Les briques de l'Univers (TM) - Biographies
		En 1913, Francis William Aston montre que le néon atmosphérique est bien un mélange de deux isotopes de masse 20 et 22 dans le rapport de 10 à 1.
		Avec sir William Ramsay, il découvrit en 1894, un élément inerte, appelé argon.
		Avec sir William Ramsay, il sépara le néon des autres gaz rares de l'atmosphère en en 1898.
	www.ac-versailles.fr /etabliss/herblay/briques/fr/fr_galry.htm (1729 words)

	Relative Atomic Mass
		The relative masses of atoms are measured using an instrument called a mass spectrometer, invented by the English physicist Francis William Aston (1877-1945) when he was working in Cambridge with J. Thomson.
		Aston eventually discovered many of the naturally occurring isotopes of non-radioactive elements.
		He was awarded the Nobel Prize for Chemistry in 1922.
	www.avogadro.co.uk /definitions/ar.htm (295 words)

	MSN Encarta - Related Items - Nobel Prizes
		Stein, William H. Stein, William H. (1911-1980), American biochemist and Nobel laureate.
	encarta.msn.com /related_761567175_4.112/Stein_William_H.html (65 words)

Try your search on: Qwika (all wikis)

Topic: Francis William Aston

Ads by Google

Related Topics

In the News (Fri 4 Dec 09)