Tackling air quality and COVID-19 in the classroom

As the days get colder, teachers not only face the usual seasonal battle of keeping classrooms at a comfortable temperature but also trying to reduce the COVID-19 virus count in the environment. How to reduce virus spread ...

Ancient Mayan maize god sculpture found in Mexico

Archaeologists have uncovered a roughly 1,300-year-old sculpture representing the head of a Mayan maize god in ruins in southeastern Mexico, the National Institute of Anthropology and History said.

Low-cost gel film can pluck drinking water from desert air

More than a third of the world's population lives in drylands, areas that experience significant water shortages. Scientists and engineers at The University of Texas at Austin have developed a solution that could help people ...

Waiting for the water train in scorching India

Afroz misses school every day to spend hours waiting with a handcart full of containers for a special train bringing precious water to people suffering a heatwave in India's desert state of Rajasthan.

Real-time ultrafast humidity sensing optical sensor

The Hercules beetle native to South America has a fascinating trait of changing its shell colors depending on the external humidity conditions. This is because the inside of the beetle's shell consists of porous lattice structure ...

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