Choppy waters

2019-03-07 05:15:12

Careful with that rubber duck: you might trigger a call to the paramedics. The National Institute of Longevity Sciences in Japan says a laser embedded in the ceiling of your bathroom could raise the alarm if you have a seizure or fall in the bath. By bouncing a light beam off the water, a team led by Kazuki Nakajima detected waves produced in the water by respiration and heart rate. “The system could detect if you stop breathing and raise the alarm,” he says. Not everyone is impressed: “This probably isn’t the way you’d do it,