http://www.gizmag.com The cost of securing large properties with physical barriers like fences or conventional electronic surveillance systems can be quite prohibitive but a new invention from Tel Aviv University promises a cheap, effective solution in the form of a network of tiny sensors as small as dewdrops. Called "Smart Dew", the devices can be scattered outdoors on rocks, fence posts and doorways, or even indoors on the floor of a bank to serve as invisible security guards with each individual "dew droplet" capable of detecting an intrusion within a parameter of 50 meters (165 feet). en gizmag.com http://www.gizmag.com/tau-smart-dew/11359/#comment-29401 http://www.gizmag.com/tau-smart-dew/11359/#comment-29401 Tue, 03 Aug 2010 16:01:33 -0500 http://www.gizmag.com/tau-smart-dew/11359/#comment-21847 http://www.gizmag.com/tau-smart-dew/11359/#comment-21847 Sun, 09 May 2010 04:00:06 -0500 http://www.gizmag.com/tau-smart-dew/11359/#comment-21451 http://www.gizmag.com/tau-smart-dew/11359/#comment-21451 Wed, 05 May 2010 04:16:53 -0500 http://www.gizmag.com/tau-smart-dew/11359/#comment-14548 http://www.gizmag.com/tau-smart-dew/11359/#comment-14548 Thu, 04 Feb 2010 16:40:39 -0600