You probably know Dyson for its strange-looking vacuums and fans, but in the 21 years Sir James Dyson has been inventing, he’s cooked up more than high-tech home goods. His coolest contraption yet? An augmented reality headset that looks a lot like Google Glass. Oh, and he invented it more than 10 years ago. Back in 2001, Dyson began working on an augmented reality headset it intended to call Dyson Halo. The Halo was meant to be a portable, head-mounted computer that looked like a pair of glasses and responded to audio prompts. Sound familiar?