In this step-by-step tutorial, learn how to make a powerful alarm at home using a DC motor. Perfect for DIY enthusiasts, this ...

In this step-by-step tutorial, you'll learn how to make a very loud, simple, and powerful alarm using everyday materials.

Let’s say you want to build a Nixie clock. You could go out and find some tubes, source a good power supply design, start whipping up a PCB, and working on a custom enclosure. Or, you could ...

1. Tap your Clock app. 2. Tap Alarms near the bottom of your screen. 3. Tap the plus (+) sign in the top right corner of your ...