An Australian astrophysicist got himself into a jam while trying to invent a device to fight COVID-19 transmission. Daniel Reardon came up with a genius idea — he wanted to build a magnetic necklace that reacts when wearers try to touch their faces.
In the midst of the coronavirus spread, physicians advise that one of the best ways to avoid infection is by not touching your face. “I thought that if I built a circuit that could detect the magnetic field, and we wore magnets on our wrists, then it could set off an alarm if you brought it too close to your face,” he told the Guardian Australia of his idea. “A bit of boredom in isolation made me think of that.” The device wasn’t cooperating, so he started goofing around with the magnets,