This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and ...

Over on YouTube [Lockdown Electronics] reviews an old bit of kit known as the Silicon Controlled Rectifier (SCR). Invented in the 1950s the SCR is a type of thyristor and they were popular back in ...

Nicholas Murray]’s Composite Test Pattern Generator is a beautifully-made, palm-sized tool that uses an ESP32-based ...

The classic Schmitt-trigger-based RC oscillator is "hacked" and analyzed using the simulation software QSPICE.

Abstract: This paper proposes a dynamic capacitance matching (DCM)-based RC current response algorithm for calculating the current waveform of a signal line without performing transistor level SPICE ...

December 10, 2025, Mountain View, CA -- For 10 months, a SETI Institute–led team watched pulsar PSR J0332+5434 (also called B0329+54) to study how its radio signal "twinkles" as it passes through gas ...

The Pentagon’s latest report makes one thing clear: Signal protects conversations, but it was never designed to safeguard U.S. war plans — and using it that way carried real risk for American forces.

Defense Secretary Pete Hegseth faced scrutiny on two fronts Thursday, as lawmakers zeroed in on the legality of a Sept. 2 strike on survivors aboard an alleged drug boat in the Caribbean, while ...

A Pentagon inspector general report concluded that Secretary of War Pete Hegseth sent sensitive, nonpublic strike information over the encrypted app Signal using his personal phone, a violation of ...

Abstract: Electroencephalography is crucial for understanding brain signals. This work presents a methodology for synthetic EEG signal generation to simulate frequency bands, incorporate noise, and ...

Defense Secretary Pete Hegseth’s bad week just got worse. That’s after the long-awaited release Thursday of an inspector general’s report on his sharing of highly sensitive military attack plans on ...

A Pentagon watchdog has determined that Defense Secretary Pete Hegseth risked the safety of U.S. servicemembers by sharing sensitive military information on the Signal messaging app, according to a ...