First the Armageddon Bra, a wearable computer that warned its owner of impending nuclear attack. Now we have the Techno Bra, designed for women too scared to walk the streets at night. Combining a heart monitor, GPS positioning, Chantilly lace trim and underwiring, the Techno Bra vibrates silently when its heart beat is raised. And -- get this -- the bra will send an alert to the police station , unless its occupant switches the damn thing off. This will go down a storm with Our Boys in Blue. It’s a good thing the bra can tell the difference between exertion – caused by running for the bus – or trauma – such as missing the bus. Techno Bra designer Kursty Groves reckons it could even go into production. We guess that it would be more useful for women prone to heart attacks. We also guess that, unlike the Armageddon Bra, wearers can wear the Techno Bra under their clothes. The Techno Bra incorporates technology from Nokia and Proactiv, which has something to do with "sports electronics". See also: Mobile phone can save you from a heart attack