and a computer in your phone that's powerful enough to do so, it's a fairly new innovation. as with so much else in aviation, covid has proven a real accelerator here. last but not least, i have i have the thermo smart temporal thermometer from withings. so, once you switch this on, it measures your temperature using your temporal artery which runs across your forehead to your temple. it's all over very quickly, in around two seconds, and it vibrates to let you know it's done. there's my temperature. i then scroll to my profile — lucy, that's me. click the button and it tells me i'm fever—free because it's green — something i'm sure my cameraman is very pleased to hear — and pressing that button also means it syncs your data to a dedicated app on your smartphone.