Satellite phones help when you have no signal, but they're expensive. Fortunately, accessories from Motorola and Thuraya can ...
The Great Outdoors on MSN
How to use GPS for hiking navigation
A GPS - or global positioning system - is a handy tool for hillwalkers. We examine how to use GPS for hiking navigation ...
A few weeks back, we reported on a research group that figured out how to measure heartrate using perturbations in WiFi signals. [Nick Bild] was interested in this so-called “Pulse-Fi” ...
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