Body armor that can stop rifle-fired armor piercing rounds? A Blackberry that knows where it is? Ads that show themselves? Get ready!
A lightweight bulletproof vest that protects against armour-piercing rounds is being developed by the US government's Army Soldiers System Command.
Conventional vests use woven plastics to ensnarl normal, blunt bullets. Extra layers of hard ceramics, with air-filled gaps in-between, are needed to stop shells with hard cores and sharp, armour-piercing tips. But this makes the protection too heavy and bulky for a person to wear.
The new vest has three layers: a top ceramic section, a middle layer of aluminium, and bottom layer of woven nylon.
The new Blackberrys would occasionally and very briefly vibrate. This should be too short to be mistaken for a message alert but just long enough for an accelerometer inside the device to measure how much it moves. This tells the Blackberry whether it is on top of a flat table, in a person's hand or stuffed inside a pocket.
When a PVR fast forwards it saves processing power by displaying only the key frames. So the new system lets a broadcaster concentrate an advertising message in those key frames. A simplified version of an ad should then still be visible during fast-forwarding, albeit without sound.
Very cool stuff.