Wi-Fi works by using radio waves, similar to those used for radios or TVs, to send information through the air. When you do something online, like opening a website, your device turns that request ...

The traditional way to make a cellphone call is for your handset to ping whichever base station you’re closest to, with your voice and the voice of the person you’re speaking to flying through the air ...

Airplane WiFi works through a smart mix of satellites, ground towers and onboard networks that relay internet to your device ...