How To: Make the world's simplest oscilloscope in 5 minutes

How to Make the world's simplest oscilloscope in 5 minutes

What is an oscilloscope? Well, it's an electronic instrument that produces traces of color on a cathode-ray tube that corresponds to oscillations of voltage and current. Check out this video to learn how to make the world's simplest scilloscope. The best part? You can do it in five minutes.