Varun K. A. Sreenivasan is in the Institute for Medical and Human Genetics, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany, and the Max Planck Institute for Molecular Genetics, Berlin, ...

In nature, there exist structures that are mirror images of each other but cannot be perfectly superimposed. These are known as chiral objects, derived from the Greek word for "hand," since left and ...