Virtual particles may not be real, but they help physicists track how forces move, and allow for incredibly precise ...

Understanding what happens inside a material when it is hit by ultrashort light pulses is one of the great challenges of ...

Across the country, men coerce or even force pregnant women to take pills that induce an abortion. Some of these use abortion pills to cover up abuse. We have no way to know the full scope of this ...

This review delineates a design strategy for mechanoresponsive polymers by categorizing hydrogen-bonding (H-bonding) motifs into “rigid” and “flexible” types. Rigid H-bonds, with strong directionality ...