Scientists at the University of Miami Rosenstiel School of Marine & Atmospheric Science have discovered a technique to track urban atmospheric plumes thanks to a unique isotopic signature found in vehicle emissions. Read more on Science Daily.
ChemicalizerEng
Nanoscale Secret to Stronger Alloys: Scientists Find Nanoparticle Size Is Readily Controlled to Make Stronger Aluminum Alloys
Long before they knew they were doing it -- as long ago as the Wright Brother's first airplane engine -- metallurgists were incorporating nanoparticles in aluminum to make a strong, hard, heat-resistant alloy. The process is called solid-state precipitation, in which, after the melt has been quickly cooled, atoms of alloying metals migrate through a solid matrix and gather themselves in dispersed particles measured in billionths of a meter, only a few-score atoms wide. Read more on Science Daily.
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