TechnologyData centres could store information in glass for thousands of years Microsoft researchers have developed a technology that writes data into glass with lasers, raising the prospect of robotic libraries full of glass tablets packed with data ¿ìè¶ÌÊÓÆµ
TechnologyLasers smaller than a human hair emit doughnut-shaped light Incredibly thin, hollow wires made from gallium and nitrogen can produce laser beams that are hollow with a ring-shaped cross-section, and that could be used to create optical fibres out of thin air ¿ìè¶ÌÊÓÆµ