Energy & Green Tech
How do we know if a new battery is good? Batteries that perform well are invaluable to a number of resources that we use daily, such as cell phones and laptops, but also those that we are utilizing more frequently than ever ...
Jan 10, 2018
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97
Hi Tech & Innovation
Remember when Microsoft was actually aspiring to be mobile phone players? It seems like yesterday—but actually it was not so long ago. With the rise of the iPhone and flashy Android launches, the world got used to unsightly ...
Security
A newly discovered malware by Kaspersky Lab researchers is so aggressive it can harm phones physically.
Engineering
Whether it's improved traffic patterns, energy savings or reduced noise pollution, cities across the world are actively introducing "smart" technologies to improve the quality of life for their citizens. But with costs and ...
Dec 1, 2017
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24
Security
Demonstrating a potential privacy breach, a team of Princeton University engineers has developed an app that can locate and track people through their smartphones even when access to the Global Positioning System, or GPS, ...
Nov 30, 2017
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380
Consumer & Gadgets
(Tech Xplore)—A pair of researchers at Google has released a video on YouTube demonstrating a possible new feature for Android phones—a "stranger is looking" alert that pops up if the phone detects another person behind ...
Consumer & Gadgets
Shook up with all the tech news headlines about Android malware? Planning to break your vow to never get in line for an iPhone with all the choices you get from phone makers tied to Android?
Security
People with cracked phone touch screens? What else is new? Many people drop their phones, shatter their screens and either put up with their cracked screens or run to shops for replacements. Now there is something to worry ...
Software
(Tech Xplore)—Microsoft announced a new Insider Preview Build for Windows 10 on PC and Mobile. The builds are 16251 for PC, and 15235 for Mobile. Judging by news stories, the most popular talking point around all the new ...
Energy & Green Tech
(Tech Xplore)—What would you say to a cell phone that works without a battery? A barest-bone keypad and LD light as quite unsnazzy components? If you cannot live without showy capabilities of smartphones then you might ...
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
