This Five-Bladed Behemoth Is the World's Largest Cargo Ship Propeller

Modern international trade is only possible because of our fleets of seafaring cargo ships. And as these gigantic vessels continue to grow to meet the increasing demands of a rapidly globalizing marketplace, so too do their components. Spanning nearly 34 feet in diameter and weighing a stout 113 tons, this massive… » 3/18/14 1:40pm 3/18/14 1:40pm

The Human Powered Toy Helicopter That Never Needs Charging

They're undeniably fun, but all remote control toys—particularly those that fly—have one very unfortunate downside in common: they all run out of power too quickly. Whether it's gas or batteries, they'll all be grounded before you're done having fun. But not this tiny flying propeller. » 9/09/13 5:00pm 9/09/13 5:00pm

This Crazy Propeller-Driven Hanging Monorail Was Once Considered the…

Oh, olden times—you so crazy. The modern subway might be a perfectly functional way to get around a big city, but you can't help but feel a little disappointed that inventor George Bennie's hanging Railplane didn't catch on as a more exciting alternative. » 6/14/12 4:40pm 6/14/12 4:40pm

Huge Spinning Blade POV Display is Not for Kids

We've seen some cool POV display setups in the past, like this bicycle spoke Obama propaganda message » 11/23/08 10:00am 11/23/08 10:00am, but I don't recall one that could both amaze a person and take their limbs off at the same time. Called the "Display from Hell," that's pretty much what this thing does, all while projecting POV images using 100…