
	Where results make sense

Topic: Ralph Kronig

In the News (Tue 14 Feb 12)

EXECUTIVE POWER

Iran

ANALYSIS

Pakistan

Family compact

	Ralph Kronig - Wikipedia, the free encyclopedia
		Ralph Kronig (later Ralph de Laer Kronig) was born in 1904 from American parents in Dresden, Germany where he received his primary education.
		Kronig was privileged to be a young, brilliant physicist in that glory-day of 20th century theoretical physics, which made it possible for him to live and work among the great physicists of that era (Bohr, Ehrenfest, Heisenberg, Pauli, Kramers).
		Kronig was later in 1939 to be appointed a professor of theoretical physics in the Netherlands and to devote his life to research.
	en.wikipedia.org /wiki/Ralph_Kronig (1572 words)

	New Page 1
		Ralph Kronig (1931, 1932), photo page, (note 2), published the first theory of x-ray absorption fine structure which contained some of the basic concepts of the modern interpretation.
		His equation, Hayasi (1), bears a remarkable similarity to that of Kronig and was equally successful in explaining experimental spectra.
		Kronig asked questions (published in Lytle, 1965) concerning the apparent success of my simple model even without an accurate field to describe the electron scattering.
	www.exafsco.com /techpapers (7716 words)

	Quaest.io on Spin (Site not responding. Last check: 2007-10-25)
		The concept of elementary particle spin was first proposed in 1925 by Ralph Kronig, George Uhlenbeck, and Samuel Goudsmit.
		It met a favorable response, especially after Llewellyn Thomas managed to resolve a factor of two discrepancy between experimental results and Uhlenbeck and Goudsmit's calculations (and Kronig's unpublished ones).
		This discrepancy was due to the necessity to take into account the orientation of the electron's tangent frame, in addition to its position; mathematically speaking, a fiber bundle description is needed.
	www.quaest.io /?title=spin (2042 words)

	Kramers-Kronig relation - Wikipedia, the free encyclopedia
		In optics, especially nonlinear optics, these relations can be used to calculate the refractive index of a material by the measurement of the absorbance, which is better accessible.
		The relation is named in honour of Ralph Kronig and Hendrik Anthony Kramers.
		Assuming a monochromatic electromagnetic radiation whose dependence upon time can be expressed in the form e
	en.wikipedia.org /wiki/Kramers-Kronig_relations (396 words)

	AutoBioNotes
		I was privileged enough to be admitted to the very small group of top-level students who could work directly with the renowned Ralph Kronig, whose scientific importance may be derived from the frequency with which his name is cited in the Archive for the History of Quantum Physics.
		Kronig and I co-authored in 1966 a paper for the Royal Netherlands Academy on the research I did for my graduation (A rigorous solution of Dirac's equation.
		While a student of Kronig's, I was honored and privileged to be given the unique position of Graduate Research Assistant with him.
	www.learndev.org /People/JanVisser/AutoBioNotes.html (3333 words)

	Kronig R Ralph 1904 Incoming letters [microform], 1924-1930. AIP International Catalog of Sources (Site not responding. Last check: 2007-10-25)
		Kronig R Ralph 1904 Incoming letters [microform], 1924-1930.
		Originals in possession of Kronig at time of microfilming in 1963.
		Letters from Niels Bohr, Charles G. Darwin, H. Dorgelo, Enrico Fermi, Ralph H. Fowler, Werner Heisenberg, Erik Hulthen, Friedrich Hund, Hendrik Anthony Kramers, Wolfgang Pauli, and John H. van Vleck.
	www.aip.org /history/catalog/icos/5841.html (147 words)

	Milestones: Ralph Noyes
		I'm sure I've got a picture of Ralph Noyes around here somewhere, but he was so unprepossessing, you never know.
		"Ralph Noyes was born in the tropics," according to the biographical note on the dust jacket of his 1985 novel, A Secret Property," and spent most of his childhood in the West Indies.
		He served in the RAF from 1940 to 1946 and was commissioned as aircrew, engaging in active service in North Africa and the far East.
	www.anomalist.com /milestones/noyes.html (1451 words)

	More on Spin
		Elementary particles such as the electron can have non-zero spin, even though they are believed to be point particles possessing no internal structure.
		The concept of spin was introduced in 1925 by Ralph Kronig, and independently by George Uhlenbeck and Samuel Goudsmit.
		It met a favorable response, especially after L.H. Thomas managed to resolve a factor of two discrepancy between experimental results and Uhlenbeck and Goudsmit's calculations (and Kronig's unpublished ones).
	www.artilifes.com /spin.htm (1568 words)

	Discovery of electron spin
		As it turned out, Ralph Kronig, a young Columbia University PhD who had spent two years studying in Europe, had come up with the idea of electron spin several months before Uhlenbeck and Goudsmit.
		He had put it before Pauli for his reactions, who had ridiculed it, saying that "it is indeed very clever but of course has nothing to do with reality".
		Kronig did not publish his ideas on spin.
	www.lorentz.leidenuniv.nl /history/spin/spin.html (267 words)

	X-ray absorption fine structure - Dic.blogopt.com (Site not responding. Last check: 2007-10-25)
		An observed fine structure near the absorption edges was first explained by a theory of Walther Kossel and for many years was referred to as the “Kossel structure”.
		In contrast, an oscillatory structure extending for hundreds of electron volts past the edges was called the “Kronig structure” after the scientist, Ralph Kronig, who explained it theoretically.
		The former is now called X-ray absorption near-edge structure (XANES) and the latter is extended X-ray absorption fine structure (EXAFS).
	dic.blogopt.com /XAS (247 words)

	Preface
		Letters to H. Kramers from: H. to R. de L. Kronig (117 in 1926); R. de L. Kronig (7/28 in 1926-38).
		Letters to H. Kramers from: Louis Kramer, Cello Repairing (1/1 in 1947); Ralph Kronig (2/4 in 1945); M. Kruisinga, Notariste Vriezenveen (2/5 in 1943-49); J. Krusemeyer (1/2 in 1949); N. Kuiper (6/15 in 1946-50); W. v.
		This microfilm was received from R. Kronig, Technische Hogeschool Delft, Delft, The Netherlands, in December, 1962.
	www.amphilsoc.org /library/guides/ahqp/films1.htm (7828 words)

	[No title] (Site not responding. Last check: 2007-10-25)
		Long term visitors included talented young physicists such as Enrico Fermi, Ralph Kronig and Oskar Klein.
		Fermi was strongly impressed by the briljant students he encountered in Leiden.
		In return the young American physicist Ralph Kronig followed Ehrenfests advice to visit Europe and was later to become a professor of physics in the Netherlands.
	www.phys.uu.nl /~boeyink/ehrenfest/images/Vancouver2.doc (2980 words)

	Innere Freiheitsgrade
		There were some people thinking about electron spin in those days, but there was a lot of basic opposition to such an idea.
		One of the first was Ralph de Laer Kronig.
		Pauli said, "No, it's quite impossible." Pauli completely crushed Kronig.
	www.thp.uni-koeln.de /natter/physwelt/vorl8/slide0007.html (165 words)

	Kronig R Ralph 1904 Oral history interview with Ralph Kronig, 1991. AIP International Catalog of Sources (Site not responding. Last check: 2007-10-25)
		Kronig R Ralph 1904 Oral history interview with Ralph Kronig, 1991.
		If you are not immediately redirected, please click here
		This interview was conducted by Michael Ekert in 1991.
	www.aip.org /history/catalog/icos/1841.html (101 words)

Try your search on: Qwika (all wikis)