An NPN transistor is used as a switch in this circuit. How To Design A Fire Alarm Circuit? Now, as we know the main abstract of this project, let us move a step ahead and gather some more information ...

A Simple metal detector circuit can be made at home on a small scale. In this project, we are going to make a simple metal detector circuit using a proximity sensor.

Learn how to build a fun Owl Circuit Craft out of a recycled toilet roll, then bring it to life with a simple circuit to make the eyes glow.

How to make play-dough circuits. Make super easy play-dough circuits with these easy instructions. Cool science for kids.

Play dough circuits 2: experiment with electricity Last time, we went through the basics of how to make simple electrical circuits with play dough and light-emitting diodes, now it's time to ...

We’ve published a lot of posts about DIY circuitry, including a previous effort of [mikey]’s, 3D-printed solderless circuits, plus another post about printing point-to-point circuits on a 3D ...

This light up spooky house is a great Halloween activity or alternative pumpkin idea as well as a fun science activity for learning about circuits.

Steve Hodges wants to make it easy to prototype electronic devices, so he's found a way to print circuits with an inkjet printer.

Simple syrup is one of those must-have ingredients, for both the bar and the kitchen. Today, Joel MacCharles shows us different ways to make simple syrup and 4 different simple syrup flavour combos to ...

A simple electric circuit learns to classify data in a creative new design that could lead to more energy-efficient machine-learning hardware.