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China has completed full-engine testing of a 220-tonne liquid oxygen-methane engine for its reusable carrier rockets, marking a major breakthrough in high-thrust, high-performance propulsion.

Eddy currents are not just textbook curiosities; they are the hidden loops that appear whenever metal meets a changing magnetic field. From DIY levitation tricks to clever braking systems, these ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

This all-purpose presence sensor is a master at monitoring indoor activity and linking it to smart home features you already use. Tyler has worked on, lived with and tested all types of smart home and ...

Allegro’s ACS37200 200-A Hall current sensor slashes power dissipation with its 50-µΩ shunt, offering 1,400 V of isolation in a compact PSOF package for high-voltage systems. How the ACS37200’s 50-µΩ ...

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

The Gen III TacIRST distributed infrared threat‑warning system will equip the F-22 Raptor, with an evaluation planned in 2026. Lockheed Martin has announced the first flight of the latest iteration of ...

Flu season is fast approaching in the northern hemisphere. And a taste-based influenza test could someday have you swapping nasal swabs for chewing gum. A new molecular sensor has been designed to ...

What kind of an exam provides all the questions in advance and then accepts 60% as a passing grade? That’s the U.S. citizenship civics test. Last week the Trump Administration moved to make the exam ...