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The latest Specialty Digest coverage in Technology.

Technology

Technology
A home Wi-Fi router with antennas extended, broadcasting a wireless network using radio waves.

How Does Wi-Fi Actually Work?

Wi-Fi feels like magic — open a laptop anywhere in the house and the internet is just there, no cable in sight. The mechanism behind it, though, is not much different from a walkie-talkie: it is radio, tuned to frequencies too high for any radio dial, carrying data instead of voices. It Starts With a […]

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No cable in sight, yet the internet is just there. Here is the radio-wave mechanism connecting your devices to the router in under a second.

Technology
Aerial view of a water treatment plant showing tanks and pipes, representing smart water infrastructure

Inside the Quiet Redesign of How Cities Manage Their Water

Sensor networks and old infrastructure are an unlikely but increasingly common pairing, and the results are already reshaping how utilities decide where to dig. Most of the pipes carrying drinking water under major cities were laid before anyone thought to make them smart. Some of the cast-iron mains beneath American streets predate the automobile. Retrofitting

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Sensor networks and old infrastructure are an unlikely but increasingly common pairing.

Technology
Rows of illuminated server racks in a data center, representing distributed and edge computing infrastructure

The Numbers Behind the Global Shift to Distributed Computing

Processing power is moving away from centralized data centers faster than most forecasts predicted — but the numbers show two things happening at once, not one. The shift toward edge and distributed computing is being driven less by any single breakthrough than by an accumulation of smaller pressures: latency-sensitive applications, rising energy costs, and regulatory

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Processing power is moving away from centralized data centers faster than most forecasts predicted.