Engineering

High-security identification that cannot be counterfeited

Try whispering at one end of the Echo Wall in the Temple of Heaven in Beijing. People at the far end of the curved wall will hear you from 65 meters away. This is the whispering-gallery effect. Now, researchers from Japan ...

Consumer & Gadgets

Mojo Vision shows off display technology for augmented reality

What meets the eye is important—but in the case of entering the realm of augmented reality, how it meets the eye is an issue. A California company is on that case. They have technology to let AR users keep in the flow eyes-up. ...

Engineering

An easy-to-make, double-duty curved image sensor

These days, we increasingly rely on our cell phone cameras to capture virtually every aspect of our lives. Far too often, however, we end up with photos that are a sub-par reproduction of reality.