blades

Field & Stream's outdoors skills expert examines the finer points of honing a knife with a stone.

What's in a name? For DARPA, acronyms are more than just shorthand

First ever study of how robots attack tests their murderous ways

For all the government conspiracy militia nuts out there, I’ve got some good news and some bad news. The good … Continued

A Danish company has demoed the first stealthy wind turbine that uses similar materials to stealth aircraft

Future whirlybirds may change their rotor blades to suit the mission

Sex-and-tech writer Annalee Newitz explores the pop-culture fascination with female robots

With a shift of its wing, the Pentagon’s next attack drone goes from long-range endurance flyer to Mach-speed assassin