TechnologyUS army to 3D print concrete buildings and bridges in disaster areas The US Army Corps of Engineers has developed technology that can 3D print buildings in disaster areas, and there are plans for the world’s first 3D-printed vehicle bridge 51¶¯Âþ
TechnologySneaky US Navy feedback device could stop people being able to speak A non-lethal device developed by the US Navy aims to surreptitiously render people unable to speak by beaming their own voice back at them with a tiny delay 51¶¯Âþ