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 ...

Discover the fascinating world of physics with our "Simple Electric Train" video. In this engaging demonstration, we break ...

Before you submit an error, please consult our Video Help page. Steve Trash Science is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android ...

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 ...

After a brief but very buzzy teaser campaign, Jeff Bezos–backed startup Slate Auto just revealed its electric pickup at an event in Long Beach, California. The extremely simple, refreshingly small ...

Early radio receivers and record players nearly always had a knob marked “tone,” which was usually a crude low-pass filter with some form of severity adjustment. At best, these controls could ...

This charge-pump circuit, using just a few diodes and capacitors, ups the input voltage by a factor of 1.5 in contrast to the usual voltage-doubling output. Micropower product designs sometimes ...

Circuits that carry femtoamperes of current have many subtleties that you wouldn’t normally consider in the design and layout of conventional circuitry. If you overlook these subtleties, the circuit ...