GPS-Equipped 'Tumbleweed' Is Eco-Friendly Minesweeper

The last time you went hiking, how much time did you spend worrying about stepping on a land mine? For millions of people, buried land mines are a constant threat, effectively trapping people within city limits. There are scores of land mines buried …See all stories on this topic » Google Alerts – intitle:gps -intext:Gap […]

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