Engineering

Electric light transmits data 100 times faster than Wi-Fi

Li-fi, a communication technology harnessing visible light for data transmission, has a potential to surpass Wi-Fi's speed by more than 100 times and boasts a high bandwidth, facilitating the simultaneous transmission of ...

Internet

This tool protects your private data while you browse

A team of computer scientists at the University of California San Diego and Brave Software have developed a tool that will increase protections for users' private data while they browse the web.

Energy & Green Tech

A new way to store sustainable energy: 'Information batteries'

A future powered by sustainable energy sources could save the world from devastating climate change and reduce energy bills. But renewable energy has an intermittency problem—the sun provides no power at night, while winds ...

Software

New tool detects unsafe security practices in Android apps

Computer scientists at Columbia Engineering have shown for the first time that it is possible to analyze how thousands of Android apps use cryptography without needing to have the apps' actual codes. The team's new tool, ...

Electronics & Semiconductors

New wearable sensor sets record for solar power efficiency

Sweat, like blood, can tell us a lot about a person's health. And conveniently, it's a lot less invasive to collect. This is the premise behind the wearable sweat sensors developed by Wei Gao, assistant professor of medical ...

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