C´mon electrons, let´s do the twist!
(WorldNews France)

Figure: Following excitation by an ultra-short circularly polarised laser pulse, electrons follow a right or left helix depending on the handedness of the molecular structure they. Are you right handed or left handed? No, we aren`t asking you, dear reader; we are asking your molecules. It goes without saying that, depending on which hand you use, your fingers will wrap either one way or the other around an object when you grip it. It so happens that this handedness, or `chirality`, is also very important in the world of molecules. In fact, we can argue that a molecule`s handedness is far more important than yours: some substances will be either toxic or beneficial depending on which...