More from Paul Marks
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Space
NASA seeks help for human exploration of Mars
News
Technology
Missile defence unready for Middle East crisis
News
Technology
Tiny radio chip can store video clips
News
Technology
Starting gun misfires in next-generation DVD race
News
Technology
Twin friction-tricks grease nano-wheels
News
Technology
Gadgets get the feel of the tactile world
News
Technology
Warning signs
Features
Technology
Defused bomb crucial to Mumbai investigation
News
Technology
UK energy review backs new nuclear stations
News
Space
Galileo satellite has its code cracked
News
Earth
Intensive care heals damaged coral reefs
News
Technology
Smart coating hits rust where it hurts
News