Technology
Lost treasures: Miraculous Damascus steel
European Crusaders told of Islamic warriors wielding super-sharp, implausibly flexible blades. Had the swordsmiths stumbled on nanotechnology?
Features
Technology
Why Iranian student had radioactive metal in his bag
News
Life
Defence against bioweapons demands more action
Opinion
Technology
Briefing: Security fears over laser-enriched uranium
News
Technology
Taser under fire after teenager’s death
News
Physics
‘Fluid cloak’ to help submarines leave no wake
News
Technology
Haptic soldiers guided by buzzing belt
News
US fighting machine going green
News
Earth
Naval sonar drives whales from feeding grounds
News
Technology
Surveillance robots know when to hide
The creation of robots that can hide from humans while spying on them brings autonomous spy machines one step closer
News
Health
CT scans help recreate sniper attack
News
Technology
Army wants rapid-fire rubber bullets for crowd control
News
Technology
Sniffer mice have a nose for explosives
News
Technology
Getting medieval: The first firefights
Features