by 7News Staff TOPICS: FALLS CHURCH, Va. (7News) — A Falls Church High School teacher has been arrested for allegedly selling vape cartridges to students, according to Fairfax County Police.

Samsung is starting 2025 with a fresh attempt at popularizing 3D displays. Announced today, Samsung’s Odyssey 3D is the follow-up to prototypes that Samsung demoed at last year's CES technology ...

Tesla sold almost 1.8 million cars in 2024, according to data released by the company this morning. Unfortunately for the electric automaker, it sold more than 1.8 million cars in 2023, beating ...

Of all stages of audio amplification, phono preamplifiers pose the biggest challenges to a designer. With moving coil cartridges, deep bass signals of a mere 50 nV require no less than 90 dB ...