A direct test of E=mc(super 2)
Article Abstract:
One of the most striking predictions of Einstein's special theory of relativity is the best known formula in all of science is E=mc(super 2). This mass-energy relationship is tested directly by combining very accurate measurements of atomic-mass difference, delta m, and of gamma-ray wavelengths to determine E, the nuclear binding energy, for isotopes of silicon and sulphur.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Ferroelectricity from iron valence ordering in the charge-frustrated system LuFe2O4
Article Abstract:
The experimental evidence for ferroelectricity arising from electron correlations in the triangular mixed valence oxide, LuFe2O4, is reported. The ordering of the Fe(super 2+) and Fe(super 3+) ions is determined using the resonant X-ray scattering measurements.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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