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8 hours ago A new experiment reveals, in a nutshell, why the largest particles in some mixtures tend to gather at the top. This phenomenon is known as the Brazil nut effect, since jostling mixed nut packages tends to bring bulky Brazil nuts to the top. The effect can also be seen in cereal boxes and even space rocks ( SN: 8/15/14). Understanding how it works could help manufacturers create more uniform mixtures of ingredients for food processing, or more even distributions of active ingredients in medicine tablets, researchers report April 19 in Scientific Reports. The Brazil nut effect has ...

 E-Mail IMAGE: Solid-state batteries are charged and discharged in custom-made hardware designed at Georgia Tech. A smaller, modified version of the cell shown here was used to image these materials during cycling.... view more  Credit: Matthew McDowell, Georgia Tech Using X-ray tomography, a research team has observed the internal evolution of the materials inside solid-state lithium batteries as they were charged and discharged. Detailed three-dimensional information from the research could help improve the reliability and performance of the batteries, which use solid materials to...