Inverter-driven HVAC systems deliver 30–50% energy savings — but their sensitive electronics are highly vulnerable to voltage ...

Abstract: Numerous binary variables and constraints greatly affect the computation of large-scale network-constrained unit commitment (NCUC) problems. With the integration of massive renewable energy ...

One Redditor was frustrated when they felt like they were being strung along by an HVAC repair company over a series of ineffective air conditioner fixes.

Add Yahoo as a preferred source to see more of our stories on Google. The Air Force is in the middle of replacing its aging rescue helicopter fleet. But the number it plans to buy has been cut. Combat ...

Air Force photo by Senior Airman Grace Turpin. Combat search and rescue is the promise the Air Force makes to American and allied pilots and aircrew: “if you punch out over enemy territory, we’ll come ...

Although it launched alongside the rest of the iPhone 17 lineup, the iPhone Air hasn't been as successful as the three iPhone 17 models. Battery life, the single-lens rear camera, the lack of stereo ...

Copyright 2026 The Associated Press. All Rights Reserved. Copyright 2026 The Associated Press. All Rights Reserved. President Donald Trump’s plane, Air Force One ...

Among those with high ADHD traits in childhood, 42% had two or more health problems in midlife, compared to 37% of those without high ADHD traits. People with high ADHD traits at age 10 were also more ...

A United States Air Force VC-25A aircraft carrying President Donald Trump returned to Joint Base Andrews late on January 20, 2026, after what the White House described as a minor electrical issue was ...

A travel vlog by Japanese content creator Ikechan has sparked outrage online after she described an Air India flight as “packed with Indians” and referred to the airline as “bad” in the caption.

Efforts to gut the federal workforce by Elon Musk’s so-called Department of Government Efficiency significantly derailed operations at a Pentagon tech team with a key U.S. military role, according to ...

Direct air capture (DAC) is a negative emission technology for removing CO2 from the atmosphere to maintain the CO2 level within a reasonable range so as to address greenhouse effects. In this study, ...