Heat pumps may be leading sales, but dual fuel systems are winning on trust, redundancy, and real-world reliability.

The KF is Copeland’s variable-speed scroll compressor for the 1.5- to 5-ton North American residential market, designed for ...

Drivers across Texas may soon see speed limits change in real time. Digital signs flashing different speed limits are starting to pop up on Texas highways. They're part of a new initiative in the ...

New digital speed limit signs are already active on some roads, changing the limit depending on numerous factors. Texas introduces variable speed limits using digital signs after a deadly 2021 pileup.

Speed limits across Texas roads are about to get smarter. In an effort to make highways safer and more responsive to real-time conditions, state officials are beginning a wider rollout of variable ...

Variable motorway speed limits have been in place in the United Kingdom on some routes for years now. Despite being controversial in some circles, these have clear benefits for modern motoring, as ...

Add Yahoo as a preferred source to see more of our stories on Google. The government has ordered an investigation into how thousands of motorists were wrongly recorded as breaking the speed limit on ...

Speed limits are a subject of constant discussion across America, and because of decentralized state regulation over the limits, there can be a wide variance in limits from state to state. Arizona, ...

Most techniques for slowing light are limited in the delay time that can be achieved relative to the temporal pulse width. The use of gap solitons could help overcome this limitation. A fundamental ...