Robert F. Kennedy, Jr., has expressed support for some fields of science but has also declared he’d like a “break” in infectious-disease research. Here’s what he might do as the U.S.’s newly confirmed ...

The group based at The University of Manchester have developed a way to tie an artificial 15 nanometre (15 millionths of a millimetre) molecular strand into any one of three different knots just as if ...

A mathematical knot can be pictured as a knotted piece of string that forms a closed, continuous loop. If the string can be deformed without cutting it into a simple circle, with no twists or ...