A mobile phone (or cellphone[a]) is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone (landline phone). The radio frequency link establishes a connection to the switching systems of a mobile phone operator, which provides access to the public switched telephone network (PSTN). Modern mobile telephone services use a cellular network architecture, and therefore mobile telephones are called cellphones (or "cell phones") in North America. In addition to telephony, digital mobile phones support a variety of other services, such as text messaging, multimedia messaging, email, Internet access (via LTE, 5G NR or Wi-Fi), short-range wireless communications (infrared, Bluetooth), satellite access (navigation, messaging connectivity), business applications, payments (via NFC), multimedia playback and streaming (radio, television), digital photography, and video games. Mobile phones offering only basic capabilities are known as feature phones (slang: "dumbphones"); mobile phones that offer greatly advanced computing capabilities are referred to as smartphones.[1]

A 2010 study reviewed the incidence of mobile phone use while cycling and its effects on behaviour and safety.[75] In 2013, a national survey in the US reported the number of drivers who reported using their cellphones to access the Internet while driving had risen to nearly one of four.[76] A study conducted by the University of Vienna examined approaches for reducing inappropriate and problematic use of mobile phones, such as using mobile phones while driving.[77]

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In 2010, an estimated 1500 pedestrians were injured in the US while using a cellphone and some jurisdictions have attempted to ban pedestrians from using their cellphones.[89][90] Other countries, such as China and the Netherlands, have introduced special lanes for smartphone users to help direct and manage them.[91][92]

Through more than 750 objects from around the world, multimedia installations, an interactive group chat, and a graphic novel spanning three gallery walls, explore the unseen personal, cultural, and technological connections your cellphone makes easier.

Cell phones of some kind are owned by 97% of American adults of American adults. Given the large number of users, any harmful effects associated with cellphone use could be a significant public health concern.

Five years ago, people asked me why I didn't have a cellphone. They thought I'd passed some kind of judgment, which, at the time, was not an unreasonable assumption. Grim intellectual hand-wringing over our devices had gone mainstream. Books like Nicholas Carr's The Shallows and Sherry Turkle's Alone Together cautioned that the internet was making us scatterbrained and withdrawn, incapable of living "in the moment." My phonelessness was usually mistaken for tacit agreement with their theses.

This is important. It means that for an average person like me, a phone is far from indispensable, even in situations that appear to demand one. I'm rarely lost, for instance, and never for long. I look up directions at home and memorize them or write them down. Occasionally I ask strangers to guide me. On long road trips I use a dedicated Garmin, which I would need even if I had a cellphone, in areas that don't get a good signal.

In order to make the cellphone measurements a commercial success, engineers will need to develop a method to mass produce the hydrogel test strips and ensure that they have a long shelf life, Zabow said. Ideally, he added, the hydrogel strips should be designed to react more quickly to environmental cues in order to speed up measurements.

More than three-quarters of U.S. K-12 public schools prohibit non-academic cellphone use, according to a report from the 2021-2022 school year. But only 43% of public high schools have such a rule. And at many of them, like at Hickman High, the so-called bans are enforced weakly, if at all.

Indiana Republican Gov. Eric Holcomb just signed into law a bill that requires school districts to prohibit cellphone use during instructional time, with some exceptions. A similar bill is advancing in Oklahoma, and legislation has been introduced in Kansas and Vermont.

Connecticut Democratic Gov. Ned Lamont has praised schools in his state that have restricted cellphone use, and he has introduced legislation that would direct the state board of education to adopt a model policy.

Why a rotary cellphone? Because in a finicky, annoying, touchscreen world of hyperconnected people using phones they have no control over or understanding of, I wanted something that would be entirely mine, personal, and absolutely tactile, while also giving me an excuse for not texting.

Nathaniel is an award-winning journalist who's been covering news across the country since 2007, including politics at The Loudoun Times-Mirror and The Northern Neck News in Virginia as well as sports for The Plain Dealer in Cleveland, Ohio. He has also hosted podcasts, worked as a television analyst for Spectrum Sports, and appeared as a panelist for conferences and educational programs. A graduate of Bowie State University, Nathaniel grew up in Hawaii and the United Kingdom as a military brat. Five things he must have before leaving home: his cellphone, Black Panther water bottle, hand sanitizer, wedding ring and Philadelphia Eagles keychain.

California, Oregon and Washington all broadened their laws in 2017. Each state added language that ensured that the only acceptable cellphone interaction was via hands-free systems that required minimal manual input.

To determine how effective the changes were, the IIHS researchers compared monthly crash rates over 2015-19 with two control states, Colorado and Idaho, which already had texting bans in place but did not change their laws to prohibit other cellphone use.

Using plain, straightforward language to ban all hand-held cellphone use while driving, including simply holding a phone, may not only boost driver compliance but also make police more willing to issue tickets by making infractions easier to identify and less likely to be dismissed in court. The presumption is that increased enforcement also results in greater compliance.

The law is named after two Missourians who both died in car crashes. Randall Siddens, 34, died after being struck by a driver who was video chatting on a cellphone and speeding, according to the press release. Michael Bening, 46, was struck and killed by a suspected distracted driver while trying to retrieve debris in the roadway. 0852c4b9a8

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