We look back on some of the stories we covered in 2021 – from age appropriate design to protect children, through internet shutdowns, a remote air traffic control tower and a WhatsApp school in Zimbabwe to a virtual reality opera.The podcast has even more stories: comparing Mars locations to Earth locations, a smart phone test to detect malaria, how technology can help prep for a date at home if you’re blind and controlling our devices with a muscle in our ear! Available on BBC Sounds.The programme is presented by Gareth Mitchell with expert commentary from Angelica Mari, Bill Thompson and Ghislaine Boddington.Image: Man using mobile phone Credit: Chaiwat Chaythawin/EyeEm/Getty ImagesStudio Manager: Donald MacDonald Producer: Ania Lichtarowicz