Molding, patterning and driving liquids with light

Jiming Bao, professor of electrical and computer engineering at the University of Houston, has developed a new fluid that can be cut open by light and demonstrated macroscopic depression of ferrofluid, the kind of fluid ...

Two-meter COVID-19 rule is 'arbitrary measurement' of safety

A new study has shown that the airborne transmission of COVID-19 is highly random and suggests that the two-meter rule was a number chosen from a risk 'continuum', rather than any concrete measurement of safety.

First global river database documents 40 years of change

A first-ever database compiling movement of the largest rivers in the world over time could become a crucial tool for urban planners to better understand the deltas that are home to these rivers and a large portion of Earth's ...

Fractured artificial rock helps crack a 54-year-old mystery

Princeton researchers have solved a 54-year-old puzzle about why certain fluids strangely slow down under pressure when flowing through porous materials, such as soils and sedimentary rocks. The findings could help improve ...

How you mix cells changes the brain

Brain organoids are models of the brain made from growing stem cells like iPS cells into three-dimensional structures. They are used to study all sorts of brain-related phenomenon, including neural networks and disease development. ...

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