News tagged with phone

Related topics: iphone , smartphone , cellphone , apple , google

Internet, social media expose youth to tobacco

(Medical Xpress)—Tobacco companies are barred by law from advertising their products to children, but researchers at Washington University School of Medicine in St. Louis have found that many teens and ...

Apr 01, 2014
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As age-friendly technologies emerge, experts recommend policy changes

From smart phones to smart cars, both public and private entities must consider the needs of older adults in order to help them optimize the use of new technologies, according to the latest issue of Public Policy & Aging Report (PP&AR), titled "Aging and Technology: ...

Mar 20, 2014
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Heads up, phones down when walking

(Medical Xpress)—Cellphone usage while driving is a widely known danger which has led to bans across the globe. Using a cellphone while walking, however, initially seemed to be an innocuous behavior … ...

Mar 14, 2014
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COPD? There's an app for that

A smart phone and a connection to the "internet of things" could allow people with chronic lung disease to avoid risky areas where environmental conditions, pollution and weather might exacerbate their symptoms. Details of ...

Feb 04, 2014
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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