In this DIY tutorial, learn how to make your very own USB electric lighter at home with simple materials and step-by-step guidance. Perfect for tech enthusiasts and hobbyists, this project combines ...

Here is a VLF receiver tuned to 300 kHz designed to detect the crackle of approaching lightning. A bright lamp flashes in sychrony with the lightning bolts indicating the proximity and intensity of ...

We all carry supercomputers in our pockets and use dozens of electric gizmos every day but rarely stop to marvel at the magical act of flicking a switch. Use your ordinary conducting and extraordinary ...

There have been many different ideas presented for increasing the acoustic output of a piezo buzzer or ultrasonic transducer. Most of them involve rather complicated circuitry that drives up the total ...

This course gives students a hands-on introduction to Basic Electric Circuits. The lectures introduce the theoretical background and application of simple circuit elements (resistors, capacitors, ...

A circuit is a closed loop containing various components. Electrical current flows around the circuit. Scientists use symbols to represent the different components in a circuit. Symbols are simplified ...