Fine dusts from industry, traffic, and households are omnipresent. Still, they are difficult to capture by reliable medical measurements. Researchers have now developed an exposure system, by means of ...

A new measurement of the fine-structure constant is three times more accurate than before. The constant helps glue together "coarse" and "fine" measurement of particles. The new measurement bests a ...

Not so constant: is α different here? Is the fine-structure constant different in different parts of the universe? The answer to this intriguing question could be one step closer, thanks to a new way ...

Angle of rotation: A light source (left) sends a beam of light through a topological insulator with an intrinsic magnetic field (centre), changing the direction of polarization by an angle that is ...

In the United States, different monitoring networks have used different methods for measuring EC and OC. The urban Chemical Speciation Network (CSN; which includes the 53 STN sites) previously used a ...