Weak signals from the future

摘要

Digital devices to monitor your body and its surroundings could be the next must-have gadgets. Among them is the Body Check Ball that picks up data - about body fat, bone density and muscle ratios - via electric currents as it lies in your palm. Others include a blood-pressure cuff that plugs into your iPhone, and a wireless Bluetooth sensor you can clip onto your clothes to keep a check on local air quality and noise pollution. All that remains is to integrate this sensor into a GPS system for cyclists and you could soon be choosing your route for maximum fresh air.