Hi guys, just a short article about a light dimmer switch that I opened a few days ago. I wanted a way to adjust the speed of a 220V fan and a friend of mine told me that I can use a regular and cheap ...

Simple switch to LED bulbs could save you up to £400 every year ... So a 100W incandescent light bulb uses 0.1kW an hour. By comparison, an LED bulb typically uses 4-18W, ...

So, I tried a simple circuit using a 7402 quadruple NOR gate (see the figure). It worked as expected. The only required addition was a 10-kΩ resistor connected in parallel with the marked 1-kΩ ...

So, if you've accidentally broken the old bulbs, here are a few simple tips on how to get the base out. Many of the methods we recommend involve items you likely already have around the house ...

Following is a transcript of the video. Narrator: Have you ever wondered how these bands of lights come together? It's a simple string of miniature light bulbs, with some wiring inside that ...

Light bulb. Wire. Open switch. Closed switch. Buzzer. Horrible Science fact. It's all well and good having a perfect, simple circuit but it it includes a switch, ...

Turning the electricity off at the circuit breaker is the only way to ensure there is no power coursing through the light bulb socket when you change your bulb. That said, it is possible to change a ...

Building simple circuits with copper tape, LED bulbs, resistors, and watch batteries is not as simple as you might think. Notre Dame Elementary School STEM students are putting the engineering desi… ...