^The Long Ukrainian Winters 互联网档案馆的存檔,存档日期2012-01-15. featuring Roald Hoffman, lecture at the World Science Festival.
^The Tense Middle by Roald Hoffmann, story on NPR. Retrieved 29 September 2006.
^Holocaust monument dedicated in western Ukraine. Jewish Telegraphic Agency. July 20, 2009
^Roald Hoffmann's land between chemistry, poetry and philosophy. [2007-10-31]. (原始内容存档于2008-01-19).
^Hoffmann R and Lipscomb WN, Theory of Polyhedral Molecules. III. Population Analyses and Reactivities for the Carboranes, J. Chem. Phys., 36, 3489 (1962).
^ 8.08.1Hoffmann R and Lipscomb WN, Theory of Polyhedral Molecules. I. Physical Factorizations of the Secular Equation, J. Chem. Phys., 36, 2179 (1962).
^Hoffmann R and Lipscomb WN, The Boron Hydrides; LCAO-MO and Resonance Studies, J.Chem. Phys., 37, 2872 (1962).
^Hoffmann R and Lipscomb WN, Sequential Substitution Reactions on B10H10-2 and B12H12-2, J. Chem. Phys., 37, 520 (1962).
^Hoffmann R and Lipscomb WN, Intramolecular Isomerization and Transformations in Carboranes and Substituted Boron Hydrides, Inor. Chem., 2, 231 (1963).
^Lipscomb WN. Boron Hydrides, W. A. Benjamin Inc., New York, 1963, Chapter 3.
^Hoffmann R. An Extended Hückel Theory. I. Hydrocarbons. J. Chem. Phys, 39, 1397-1412 (1963).
^BoA sings for SICHUAN’S EARTHQUAKE ! ? BoA’s Jewelry Box
For other uses, see Schooner (disambiguation). A traditional gaff topsail schooner Schooner rigging: 1 ) Bowsprit 2 ) Jib & fore staysail 3 ) Fore gaffsail & topsail 4 ) Main staysail 5 ) Main gaff topsail 6 ) Mainsail 7 ) End of boom A schooner / ˈ s k uː n ər / is a type of sailing vessel with fore-and-aft sails on two or more masts. The most common type has two masts, the foremast being shorter than the main. While the schooner was originally gaff-rigged, modern schooners typically carry a Bermuda rig. Contents 1 Etymology 2 History 3 Usage 4 Schooner sail plan 4.1 Schooner rationale 5 Multi-masted schooners 6 Famous schooners 7 Gallery 8 See also 9 References 10 External links Etymology Traditional square topsail schooner Shenandoah , sailing in Nantucket Sound. The first detailed definition of a schooner, describing the vessel as two-masted vessel with fore and aft gaff-rigged sails appeared in ...
This article is about the letter of the alphabet. For other uses, see Y (disambiguation). See also: Wye (disambiguation) Y Y y (See below) Usage Writing system Latin script Type Alphabetic and Logographic Language of origin Latin language Phonetic usage [ y ] [ ɨ ] [ j ] [ iː ] [ ɪ ] [ ɘ ] [ ə ] [ ɯ ] [ ɛː ] [ j ] [ ɥ ] [ ɣ̟ ] / w aɪ / / aɪ / Unicode value U+0059, U+0079 Alphabetical position 25 History Development Υ υ 𐌖 Y y Time period 54 to present Descendants • U • V • W • Ỿ • ¥ • Ꮙ • Ꮍ • Ꭹ Sisters F Ѵ У Ў Ұ Ү ו و ܘ וּ וֹ ࠅ 𐎆 𐡅 ወ વ ૂ ુ उ Variations (See below) Other Other letters commonly used with y(x), ly, ny This article contains IPA phonetic symbols. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Unicode characters. For an introductory guide on IPA symbols, see Help:IPA. ISO basic Latin alphabet Aa Bb Cc D...