The blade tip speed limit of a propeller plane's propeller can determine the plane's top speed for reasons relating to design, engineering, and physics.

Authorities lifted an evacuation warning for residents near Mount Diablo after a wildfire broke out on the mountain Monday just as fire crews also had to fight a wildfire in Rodeo, officials said.

The Tribest Backspin introduces a patented contra-rotating technology: a unique design where the blending blades spin in one direction while the container spins the food in the opposite direction.

Fire crews announced that the Somersville Fire in eastern Contra Costa County, which led to an evacuation warning in an Antioch neighorhood, has been fully contained less than 24 hours after it ...

Ukraine's drone strike in Operation Spider's Web devastates Russian bombers, raising concerns about drone threats and highlighting the strategic impact on airpower.

How to Solve the Rotating Puzzle Room The rotating puzzle room in Chapter 16 can be solved by using your shield to shift the walls to a specific position.

Equipped with turboprop engines and contra-rotating propellers, the Tu-95 is nuclear capable with a range of nearly 10,000 miles.

It would be called the Hiller VZ-1 Pawnee, and it would simply a direct lift rotor aircraft, with contra-rotating ducted fans lifting a simple platform for one man and equipment.

In what may be a world first, Venus Aerospace has, for the first time in the US, successfully flown a Rotating Detonation Rocket Engine (RDRE) that uses supersonic explosions to create thrust ...

The Rotating Detonation Engine being developed by Pratt & Whitney has no moving parts, which reduces complexity and costs, and could help enable high-speed, long-range flight with increased ...

Feadship just launched its Project 714, a striking 262-foot hybrid superyacht, from its Netherlands facility. The vessel is now ready for sea trials.