European XFEL, the biggest X-ray laser in the world, has generated its first X-ray laser light. The X-ray light has a wavelength of 0.8 nm -- about 500 times shorter than that of visible light. At ...

Since it was invented decades ago, ray tracing has been the holy grail for rendering computer graphics realistically. By tracing individual light rays as they bounce off multiple surfaces, it can ...

Unless you're a physicist, you probably don't pay too much mind to the function of light in your daily life. Light is light, right? When there is light, we see, and when there isn't, we don't. But ...