Articles on Wi-Fi

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The angles and branches in this illustration of a chip are key to using terahertz waves for the next generation of high-speed wireless communications. Wenhao Wang, Guillaume Ducournau, and Ranjan Singh

Chip that steers terahertz beams sets stage for ultrafast internet of the future

As more internet devices run increasingly data-heavy apps, there’s a squeeze on the wireless spectrum. High-frequency terahertz waves could ease the crunch with the help of chips that control the beams.
The TV in your home is very different from the television sets of just a few years ago. moodboard/Image Source via Getty Images

How does a television set work?

Pictures and sound, flying through the air to a box in your house? Back in the 1940s, it seemed like a miracle.
The Wi-Fi symbol, like the technology it represents, has become ubiquitous. Smith Collection/Gado via Getty Images

How does Wi‑Fi work? An electrical engineer explains

Wi-Fi has become a fundamental part of modern digital life, but its foundation is the same as the technology that allowed your great-grandparents to listen to their favorite radio programs.
Are toys sharing too much information on the internet? mhong84/Shutterstock.com

4 ways ‘internet of things’ toys endanger children

As Amazon introduces a new smart-home device aimed at children, it’s important to know many internet-connected toys are not secure, putting kids’ security and privacy at risk.

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