TechnologyYour whole office could be a computer thanks to sculpted Wi-Fi waves Bouncing around specially tailored waves can turn an entire room into an analogue computer, which could help build an energy-efficient artificial intelligence ¿ìè¶ÌÊÓÆµ
HealthNew techniques may soon make designer babies a reality – are we ready? As tests that screen embryos for complex traits become available, it's time to decide how to use these ethically – and where to draw the line Leader