How to recognise if a stone is real or fake

Confused about real versus fake gemstones? Experts reveal reliable methods to verify authenticity. Visual inspection for ...
Veritasium on MSN

Microwaving Grapes Makes Plasma

A bisected grape in the microwave makes plasma. But how does it work? A grape is the right size and refractive index to trap microwaves inside it. When you place two (or two halves) close together the ...
GitHub

Community-Calibrated Photonic Pollutant Interferometry Networks for Distributed Air Quality Sensing

Abstract This innovation presents a distributed air quality measurement system that inverts traditional sensor paradigms by using smartphone-integrated micro-interferometry to detect refractive index ...
C&EN

Refractive Index and Strain Modulation Tailor the Afterglow of Nanocomposite Films

Institute of Materials Science of Seville, Spanish National Research Council − University of Seville, C/Américo Vespucio 49, 41092 Seville, Spain ...