Ship propellers are a constant compromise between efficiency, vibration, cavitation, and power delivery. This video explains why adding blades can solve serious mechanical problems, and why engineers ...

ALSO BREAKING RIGHT NOW THIS NOON HOUR, FEDERAL JUDGES HAVE BLOCKED TEXAS FROM USING ITS NEW REPUBLICAN DRAWN CONGRESSIONAL MAPS. THE PANEL SAYS THERE’S SUBSTANTIAL EVIDENCE THE MAP IS RACIAL ...

Professional-sports leagues would like you to believe they have the gambling problem under control. They have hired high-tech security companies to monitor wagers at a granular level and implemented ...

From the Black Sox to City College to cricket, some players and managers have looked to make an extra buck for decades. By Victor Mather Sports in the United States and around the world have been ...

Ukrainians are hunting down Russian drones armed with nothing more than shotguns and rifles while dangling out of prop lanes as part of a low-tech solution to Moscow’s high-tech aerial assassins.

It's fairly common knowledge that when a supersonic aircraft approaches the sound barrier, what follows is the sonic boom. This transitory period between subsonic and supersonic, known as transonic ...

When one thinks of the average airplane, odds are that propellers are part of that mental image. They've been a crucial component of airplane construction from the moment air travel found its footing ...

For 50 years, Danish company Gori Propeller has been one of the foremost names in folding marine propellers used on sailboat auxiliary motor drives. These propellers fold into a streamlined form when ...

Click to open image viewer. Rotol introduced the R130 propeller for the Vickers Viscount airliner in 1954. The R130’s electrically-actuated hub mechanism and square-tipped aluminum alloy blades were a ...