signal

Sgnl for Smartwatches: Take Phone Calls from Your Fingertip

Here is a smart gadget that lets you take phone calls by simply putting a finger to you ear. Sgnl…

8 years ago

Architecture of Radio App Visualizes Network Signals

Our world has become quite connected. There are plenty of WiFi routers, GPS satellites, and cell towers around us. You…

9 years ago