Consumer & Gadgets

Ambient Mode announced for some Android phones

As far as Android announcements go, the one for Google Assistant Ambient Mode was more like a pleasant cowbell ring than a blasting trumpet but nonetheless it is a new feature and will please those who like the idea of being ...

Telecom

Security problems found in 5G protocol

A combined team of researchers from the University of Iowa and Purdue University has found nearly a dozen security breaches in the 5G protocol. They have written a paper describing both their findings and a security breaching ...

Engineering

Mobile phone signals provide occupancy numbers for buildings

Buildings currently consume about 40 percent of all the electricity used in the United States, most of them located in urban areas that are growing rapidly. Because electricity generation is the largest source of greenhouse ...

Energy & Green Tech

Li-ion batteries: Science 'directly into your hand'

They are omnipresent and essential to navigating modern life. Small, light, rechargeable: lithium ion batteries have revolutionised our world in less than three decades.

Software

Android 10 Go edition will bring speed, security gains

Google is bringing out its updated Android 10 version of Android Go. Google said, "we launched Android (Go edition) in 2018—a platform tailored for smartphones with 1.5GB of memory or less." Now Google has announced Android ...

Consumer & Gadgets

From phone to fridge: A mini-darkroom on the table

Taking digital photos is one thing; the next-level of happiness is making real photos to have and hold. At least, that is the reasoning of the kinds of enthusiasts who will be drawn to an item called Polaroid Lab.

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Telephone

The telephone (from the Greek: τῆλε, tēle, "far" and φωνή, phōnē, "voice") is a telecommunications device that transmits and receives sound, most commonly the human voice. It is one of the most common household appliances in the developed world, and has long been considered indispensable to business, industry and government. The word "telephone" has been adapted to many languages and is widely recognized around the world.

The device operates principally by converting sound waves into electrical signals, and electrical signals into sound waves. Such signals when conveyed through telephone networks — and often converted to electronic and/or optical signals — enable nearly every telephone user to communicate with nearly every other worldwide. Graphic symbols used to designate telephone service or phone-related information in print, signage, and other media include ℡, ☎, ☏, and ✆.

This text uses material from Wikipedia, licensed under CC BY-SA