Einstein's theory of general relativity suggests that the "memory" of ancient events, such as black hole mergers, may be etched into the fabric of space-time by gravitational waves. New research ...

Today we're (micro)-machining glass with a fiber laser. Using a copper sulfate solution, we can etch glass with a pulsed laser like the relatively common Nd:YAG fiber lasers. The CuSO4 solution ...

Nano-texture glass has etching at the nanometer scale, for the same image quality with less glare. The 11-inch iPad Pro has a resolution of 2420x1668 with 264 pixels per inch, while the 13-inch ...