24/10/2022

When did humans start using roads?

We can thank the pyramids of Giza for roads. A vital part of our built environment, they've been a staple of human existence for millennia. How they are built and used reveal a lot about our own modern societies and economies, ...

What do Americans think about controversial topics in schools?

Like many, Anna Saavedra and Morgan Polikoff saw the viral videos of fiery school board meetings over curriculum topics. They also read reports of policymakers pushing legislation to incorporate—or remove—certain material ...

Meta-lens offers superior off-axis focus

An ultrathin dielectric meta-lens has been created that improves focusing capabilities but can also be scaled down to a tiny size for integration with photonics equipment.

Detecting water pollutants using AI

Imagine using your mobile phone to track the spread of water contaminants—such as oil spills or even viruses like COVID-19—in the blink of an eye. Researchers from McGill University have developed new artificial intelligence ...

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