In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Light aircraft often use a heading indicator as a way to know where they’re going. Retired instrumentation engineer [Don Welch] recreated a heading indicator of his own, using cheap ...

Israel targeted Iran's oil facilities for the first time early Sunday, with videos showing huge flames lighting up the sky, while Iranian state media reported officials were close to announcing a ...

Pew Research Center is made up of intellectually curious people from across many fields, places and backgrounds. For decades, our expertise, best-in-class methods and commitment to high-quality, ...

March 5, 2026 • Even when it's freezing and covered in snow, Minnesota's Sax-Zim Bog attracts birders from around the world. They flock there hoping to spot owls, hawks and rare songbirds that spend ...

Abstract: A multi-tone measurement method for active phased array antennas (PAAs) operating in sub-6 GHz is proposed in a cost-effective, compact multi-probe over-the-air (OTA) chamber. Using our ...

GitHub issue reports for both user and contributor facing bugs of App Lab are welcome. Setup npm package with yarn. Install Wails with go install github.com/wailsapp ...

Abstract: This paper presents a transmit/receive module (TRM) for phased arrays realized in 45nm RFSOI CMOS technology and calibrated using machine learning. The 27-30GHz TRM includes a ...

Trump encourages Latin American leaders to use military action to help the U.S. fight cartels President Trump encouraged regional leaders gathered at his Miami-area golf club to take military action ...

AI-enhanced optical spectroscopy revolutionizes food quality monitoring with rapid, non-destructive analysis, ensuring safety and reducing waste in production.