I didn’t expect my phone to pull off this physics experiment, but it did
There are only a handful of smartphone components the average user cares about, and the list usually starts with the processor, battery, and screen. While virtually no one thinks about niche sensors like a gyroscope or proximity sensor, they’re some of the most important parts of your device. They power key features that you don’t even realize, such as when your screen orientation auto-rotates or when your screen goes black after pressing a phone against your ear for a call. Aside from these vital features we take for granted, your smartphone’s sensors double as hidden tools you can use to solve daily problems or test real-world experiments. Third-party apps like Physics Toolbox or Phyphox unlock these tools, allowing you to deploy them however you’d like. I tested it myself, and I couldn’t believe that my smartphone could use Sonar — yes, that Sonar — to identify the distance of objects using the speed of sound. With two phones, you can even gauge how fast sound waves travel using Phyphox’s Acoustic Stopwatch tool. Both Sonar and …







