MIT develops low-cost, high-energy batteries using disordered rock salt cathodes | The new material family primarily comprises manganese, an earth-abundant element less expensive than nickel and cobalt.
The Smallest, Lightest Solar-Powered Drone Takes Flight | It weighs less than a nickel and can fly nonstop while the sun shines
Unity exec tells Ars he’s on a mission to earn back developer trust — Interview: "It was not our intent to nickel-and-dime it, but it came across that way."
