http://www.gizmag.com Besides letting in light and providing pleasant views, windows unfortunately also provide a convenient entrance for burglars. Security systems have long employed contacts that, when broken, activate an alarm, but what if the simple act of moving around outside a window were enough to raise the alert. That’s the concept behind a system developed by scientists in Berlin that sensitizes windows and doors to detect suspicious movements.en gizmag.com http://www.gizmag.com/windows-uv-light-security/11275/#comment-30910 http://www.gizmag.com/windows-uv-light-security/11275/#comment-30910 Mon, 23 Aug 2010 03:08:43 -0500 http://www.gizmag.com/windows-uv-light-security/11275/#comment-1558 http://www.gizmag.com/windows-uv-light-security/11275/#comment-1558 Thu, 19 Mar 2009 10:16:23 -0500