Telecom

How does Wi-Fi work? An electrical engineer explains

Though you can't see them, radio waves are all around you all the time, carrying information. For most people, some of those radio waves are Wi-Fi signals. Wi-Fi is the catchy name an industry alliance came up with to market ...

Security

Encrypting images chaotically

An artificial neural network approach to image encryption offers many advantages over conventional encryption methods suggests a review published in the International Journal of Services Operations and Informatics. Shaimaa ...

Hardware

Plug-and-play bug exposes millions of network devices

A bug in a protocol used by virtually all Internet of Things devices exposes millions of users to potential attack, a researcher reported Monday. The fault centers on the Universal Plug and Play protocol, a 12-year-old implementation ...

Consumer & Gadgets

Apple unveils first new iPod model in four years

Apple on Tuesday introduced its first new iPod model in four years, highlighting music and games as it continued to make a priority of serving up digital content.

Engineering

Converting Wi-Fi signals to electricity with new 2-D materials

Imagine a world where smartphones, laptops, wearables, and other electronics are powered without batteries. Researchers from MIT and elsewhere have taken a step in that direction, with the first fully flexible device that ...

page 2 from 3