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Browsing the "Proceedings of the National Academy of Sciences" Tag

A New Cooling Technology Protects Against Severe Heat & Viral Spread

September 29th, 2020 | by Nexus Media

In the face of dangerous heat waves this summer, Americans have taken shelter in air conditioned cooling centers. Normally, that would be a wise choice, but during a pandemic, indoor shelters present new risks. The same air conditioning systems that keep us cool recirculate air around us, potentially spreading the coronavirus


Disappearing Meta-materials Now More Common

May 16th, 2012 | by Breath on the Wind

Meta-materials (MM: materials beyond the imagination) have been largely confined to tricks in the lab because the required components of silver and gold are not well adapted to semiconductor manufacturing processes and too much of the material is lost. These MM have the ability to bend narrow wavelengths of light, sound, and seismic waves. They have been used to make objects seem to “disappear.”



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