'Keep your head' if you're spooked by tariffs: Warren Buffett suggests reading a 19th century poem when stocks fall Ranking All-You-Can-Eat Chain Buffets From Worst To First What Salary You Need ...

As boring as propeller designs may seem to the average person, occasionally there’s a bit of a dust-up in the media about a ‘new’ design ... but commercial toroidal boat props exist too.

Traditional Gori propellers fold automatically when the engine is off to reduce drag, but they were not optimized to spin freely and generate electricity. The Hybrid Propeller solves this problem ...

and it is generally the skill of a craftsman who knows just where to change the shape of a given instrument slightly that saves many new instruments from the ignominy of being β+ rather than α.

While hydrofoils lift out of the water thanks to an underwater fin, hydroplanes zoom along by riding directly on the surface ...

Despite being integral to aviation for more than a century, propellers have changed remarkably little since the Wright Brothers. A team at MIT’s Lincoln Lab has developed a new propeller shape ...