This undated artist's rendition shows the Falcon Hypersonic Technology Vehicle 2 (HTV-2), an unmanned, rocket-launched, maneuverable aircraft that glides through the Earth’s atmosphere at Mach 20 (approximately 13,000 miles per hour), designed by the military research group DARPA (Defense Advanced Research Projects Agency).
Two George Mason University students built a fire extinguisher that can put out a blaze without using water, foam, or chemicals. The device emits a low-frequency hum that deprives the fire of oxygen.
It may never be totally impenetrable online, but DARPA chief Arati Prabhakar says the US can gain a strong advantage over other countries.
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The Pentagon's advanced research wing plans to spend $125 million on Plan X, a virtual-reality system for US cyber warriors to see attacks coming over networks and more quickly fight against them.
The ‘maker movement’ is heralded as a new industrial revolution – combining the spirit of the old shop class with modern tech in community 'Do It Yourself' spaces.