2D boundaries could create electricity
Peer-Reviewed Publication
Rice University engineers lead study to create piezoelectricity in two-dimensional phase boundaries. They could power future nanoelectronics like sensors and actuators.
Electronic cigarettes have attracted media and consumer attention for claims of their addictive nature, variety of flavors, and increased use among teens, sparking regulatory oversight and policies. A Penn State College of Medicine study suggests that these devices may help people decrease their dependence on combustible cigarettes — which contain an array of harmful chemicals called toxicants — without increasing their overall nicotine dependence.
An international research team, including atmospheric chemists from the University of Pennsylvania, used computational chemistry to identify a novel pathway for how sulfur particles can arise high in the atmosphere of the second planet from the sun
Engineers have created intelligent 3D printers that can quickly detect and correct errors, even in previously unseen designs, or unfamiliar materials like ketchup and mayonnaise, by learning from the experiences of other machines.
When scientists unveiled humanity’s historic first image of a black hole in 2019 – depicting a dark core encircled by a fiery aura of material falling toward it – they believed even richer imagery and insights were waiting to be teased out of the data.
Using new computational algorithms, scientists have measured a sharp ring of light predicted to originate from photons whipping around the back of a supermassive black hole.
Orchestral ensembles have faced many challenges when starting to perform again during the COVID pandemic, and contamination is a chief concern: specifically, whether wind instruments are vectors of contamination through aerosol dispersion. In Physics of Fluids, researchers worked with musicians to deepen our understanding of how much aerosol is produced and dispersed by wind instruments. They used visualization to characterize the flow, tracked fog particles in the air, and measured aerosol concentration from wind instruments with a particle counter. Then they combined these to develop an equation to describe aerosol dispersion.