Articles on Mobile phones

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How much is too much screen time for kids? Dragon Images/Shutterstock

‘Screen time’ is about more than setting limits

For decades, parents have fretted over 'screen time,' limiting the hours their children spend looking at a screen. But as times change, so does media... and how parents should (or shouldn't) regulate it.
Ethiopian farmers exchanging phone numbers with a research assistant. Petr Matous

Mobile phones are not always a cure for poverty in remote regions

Mobile phones are often touted as technology that can help bring economic benefits to the poor. But the benefits to those living in rural and remote areas without other infrastructure are limited.
Studies show wifi, mobile phones and other sources of electromagnetic radiation don’t make us sick. So, why are some people convinced they’re electrosensitive? from www.shutterstock.com

Apocalypse now: wifi and radiation sickness sweeping the world

Studies suggest electrosensitivity is a "communicated" disease, spread by people hearing about the alleged dangers, and sometimes worrying themselves sick.
What if even you didn’t know your own password? Password via shutterstock.com

Why we should not know our own passwords

As searches of smartphones and other digital devices at US borders become more common, can research and computer science help protect travelers' privacy?
Donald Trump is famously attached to his phone. AP Photo/Matt Rourke

How to secure a smartphone for the tweeter-in-chief

The best way to protect a presidential device is to keep it off the internet altogether. If that's not going to happen, how else can such a sensitive gadget be kept safe?
When calling these people, you want to be able to get through. Fairfax County, Virginia

Attackers can make it impossible to dial 911

'Denial of service' cyberattacks are increasingly used to shut down websites. New research reveals that 911 call centers are vulnerable to the threat as well.
An M-Pesa agent and mobile phone shop in Nairobi. A decade after it was introduced economic benefits are being felt. EPA/Boniface Mwangi

Study provides fresh insights into the benefits of mobile money in Kenya

M-PESA was launched nearly a decade ago in Kenya. New evidence suggests that the mobile money banking system has helped reduced poverty levels, particularly in households headed by women.
Pocket your phone without worry. Phone image via www.shutterstock.com.

Why you can’t fry eggs (or testicles) with a cellphone

Did your holiday gift list include radiation-shielding undies to protect your privates from cellphone radio waves? A radiation expert explains they're unnecessary – your phone won't affect your fertility.

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