Australian steelmaker InfraBuild has modernised its melt shop with new ABB VD4-AF vacuum circuit breakers to provide backup ...

ABB developed the VD4-AF circuit breaker specifically to provide a high-quality, reliable solution for electric arc furnaces.

Abstract: The liquid metal bridge generated at the microspot of the contact has a crucial role in the formation of the arc, which provides the initial energy distribution for the ignition of the arc ...

Fresh Air from WHYY, the Peabody Award-winning weekday magazine of contemporary arts and issues, is one of public radio's most popular programs. Hosted by Terry Gross and Tonya Mosley, the show ...

Nov. 28, 2025 Long-term inhalation of toxic air appears to dull the protective power of regular workouts, according to a massive global study spanning more than a decade and over a million adults.