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.
Keep Your Connection Secure Without a Monthly Bill. Get a lifetime subscription to VPN Unlimited for all your devices with a one-time purchase from the new Gadget Hacks Shop, and watch Hulu or Netflix without regional restrictions.