Forgot your password?

Comment: Re:How are these pebbles powered? (Score 4, Informative) 77

by alriddoch (#9298413) Attached to: Wireless Sensors Monitor Glacier Behavior

The glacsweb probes contain about 4 small batteries. They contain a realtime clock, and are in a minimal power sleep mode for most of the time. They wake up once a day to talk to the base station on the surface. The probes are designed to last for a year, and the first batch were deployed in August 2003.

Genius is one percent inspiration and ninety-nine percent perspiration. -- Thomas Alva Edison