Monthly Archives: July 2020

This is where the main cities are located to reopen schools

With conflicting views and conflicting plans that continue to emerge, this is where plans to reopen schools in major cities across the country lie. California’s two largest school districts announced Monday that schools will not open for any in-person instruction when the academic year begins in August, and that students …

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Laser-etched metal purifies water contaminated with sunlight with an efficiency greater than 100%

A water-absorbing, energy-absorbing, laser-etched metal surface, continuously at a direct angle to the sun, provides an economical and efficient way to purify water from sunlight. The technology was developed by Chunei Guo’s laboratory at the University of Rochester. Credit: HM Cao / University of Rochester By engraving metal with ultra-short …

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