10 Covid-busting designs: spray drones, fever helmets, anti-virus snoods

Designers, engineers and programmers have heard the klaxon call. The last few weeks have seen a wave of ingenuity unleashed, with both garden-shed tinkerers and high-tech manufacturers scrambling to develop things that will combat the spread of Covid-19. Many of their innovations raise as many questions as they answer, though. Could 3D printing now finally come into its own, with access to open-source, downloadable designs for medical parts? If so, will intellectual property infringements be waived, or will altruistic hacktivists still face costly lawsuits?