Anbieter: Phatpocket Limited, Waltham Abbey, HERTS, Vereinigtes Königreich
EUR 314,33
Anzahl: 1 verfügbar
In den WarenkorbZustand: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.
Anbieter: Ria Christie Collections, Uxbridge, Vereinigtes Königreich
EUR 371,36
Anzahl: Mehr als 20 verfügbar
In den WarenkorbZustand: New. In.
EUR 448,50
Anzahl: 1 verfügbar
In den WarenkorbZustand: New. pp. 524 Illus.
Sprache: Englisch
Verlag: Springer Berlin Heidelberg, Springer Berlin Heidelberg, 2001
ISBN 10: 354066582X ISBN 13: 9783540665823
Anbieter: AHA-BUCH GmbH, Einbeck, Deutschland
Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The unique properties of diamond are responsible for its pre-eminence as a gemstone, and give it a glamour and attraction unprecedented for any other mineral. As the first member of group IV of the periodic table of elements, carbon, in its crystalline form as diamond, has also fascinated scientists for at least 300 years. Many experimental techniques have been employed in the study of diamond, and of these, optical spectroscopy has proven one of the most fruitful. The absorption line at 415 nm, characteristic of 'Cape Yellow' diamonds, was first documented by Walter in 1891. Further work on this absorption, now known as 'N3', by the Indian school under Sir C. V. Raman in the 1930s and 1940s led to a basic understanding of the system, which they observed in both absorption and luminescence. The N3 center is a structural defect in the diamond, and the absorption of light occurs by exciting electrons in this defect from one well-defined energy state to another. When the electron returns to the original energy level, luminescence is produced. Detailed studies of natural diamonds over the subsequent 60 years have discovered large numbers of absorption and emission lines, characteristic of different defects. In 1904 Sir William Crookes showed that a colorless diamond could be turned green by long exposure to radium salts.
Anbieter: Revaluation Books, Exeter, Vereinigtes Königreich
EUR 613,10
Anzahl: 2 verfügbar
In den WarenkorbHardcover. Zustand: Brand New. 1st edition. 502 pages. 9.50x6.50x1.50 inches. In Stock.