Video tutorials -

• Electronics

If you don’t rotate an object around its center of mass, it becomes unstable - causing vibrations, extra stress, and sometimes complete system failure.

You’ve probably seen a spinning fan or display with LED lights that forms text or images in mid-air — it looks like magic! But what’s really happening?

This amazing effect is based on a concept called Persistence of Vision (POV). When an LED strip spins fast enough and its lights turn on and off at just the right times, your brain blends those quick flashes together. The result? You see a complete image - even though it’s really just a single line of lights moving in circles!

What is a Capacitor?

A capacitor is an electronic component that stores electrical energy in an electric field. You can think of it like a tiny rechargeable battery, but it charges and discharges much faster and can’t hold energy for very long.

Why Are Voltage Regulators Important?

1. They protect components from getting too much or too little voltage.

2. They keep the power supply stable.

3. They make electronic devices more reliable and last longer.

What You’ll Learn:

1. Tools & materials needed for drilling.

2. Step-by-step drilling technique.

3. How to keep yourself safe in the process.

Here, we’ve listed all the tools and skills you need to solder and desolder components using THT (Through-Hole Technology).

In the image below, you'll see where to connect the power source and the motor to the motor speed controller.

In the image below, you can see the "battery terminals".

In the image below, you can see the "electrical contacts" of the motor pointer with blue arrows.