How do cell phones work?

With worldwide mobile subscriptions estimated to be around 7 billion in 2014, cell phones have become a universal and indispensable tool for modern life. With a cell phone, you can talk to anybody on the planet from almost anywhere. But do you really know how your cell phone works? read more

From Tibet to Tanzania to Toronto, no matter where you go you'll see someone talking on his or her cell phone. These days, cell phones provide an incredible array of functions, and new ones are being added at a breakneck pace. read more

With worldwide mobile subscriptions estimated to be around 7 billion in 2014, cell phones have become a universal and indispensable tool for modern life. With a cell phone, you can talk to anybody on the planet from almost anywhere. read more

With the arrival of the mobile phone in the 1980s, communications were no longer tethered to homes, offices or payphones. But the really clever invention wasn’t the phone itself but the cellular network that supported it. read more