As restaurants, bars, businesses and schools reopen and mask requirements drop for the fully vaccinated, some people are asking how to bring in customers and students while still preventing COVID-19 ...

Voids, or empty spaces, exist within matter at all scales, from the astronomical to the microscopic. In a new study, researchers used high-powered microscopy and mathematical theory to unveil ...

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HEPA air filters promise to take nasty things out of the air, removing cigarette smoke, pollen and other irritants. How do they do this? Appliance Science looks at how HEPA air filters work, and how ...

Objective: Students will engineer a water filter based on observations of manta ray feeding filters, then test its effectiveness. Topics: Structure and function, adaptation, engineering and design ...

The U.S. military asks them to create water filtration technology designed for troops. Global health nonprofits seek technologies from them to help filter safe drinking water in developing countries.

Producing clean water at a lower cost could be on the horizon after researchers solved a complex problem that has baffled scientists for decades, until now. Producing clean water at a lower cost could ...

A high school student in the United States, Mia Heller, has developed a low-cost water filtration prototype that can remove up to 96% of microplastics using a magnetic liquid known as ferrofluid. The ...

Sand vs soil, which will be the better filter? Soil is so important to what we eat and drink! It helps filter rainwater, chemicals, and waste into clean water. Farming also relies on healthy soil to ...