Read and improve your knowledge! Joan Dreiling and Timothy Gay - TopicsExpress



          

Read and improve your knowledge! Joan Dreiling and Timothy Gay of the University of Nebraska have found that a beam of right-handed electrons—whose spin and direction of motion align according to the right hand—breaks apart more right-handed molecules at low energies than left-handed ones. Their conclusion, which is in line with previous experiments, could help explain why some of the molecules of life - amino acids and sugars - favor one chirality over the other. Electron Handedness Affects Gas Molecule Breakup Experiments show that beams of left- or right-handed electrons are not equal-opportunity destroyers of molecules having two mirror-images form, which supports the idea that primordail cosmic rays generated the asymmetry in biological molecules. Source :- #Physics_today.
Posted on: Fri, 12 Sep 2014 18:33:26 +0000

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