An Unkindness of Ravens An Unkindness of Ravens An Unkindness of Ravens is a novel by British crime-writer Ruth Rendell. It was first published in 1985, and features her popular protagonist Inspector Wexford, and is the 13th entry in the series. On American publication, it was shortlisted for the MWA Edgar Award, alongside another Rendell novel, "The Tree of Hands", meaning she has the remarkable distinction of being one of only two authors in the award's history to have had "two" novels on the shortlist in any one year (the other being Charlotte Armstrong). "Ravens" was adapted as a play by theatre professor Joel
Specific rotation preferred. The variation of specific rotation with wavelength is called optical rotatory dispersion (ORD). ORD can be used in conjunction with computational methods to determine the absolute configuration of certain compounds. Specific rotation In chemistry, specific rotation ([α]) is a property of a chiral chemical compound. It is defined as the change in orientation of monochromatic plane-polarized light, per unit distance–concentration product, as the light passes through a sample of a compound in solution. Compounds which rotate the plane of polarization of a beam of plane polarized light clockwise are said to be dextrorotary, and correspond with positive specific rotation