Science & Technology

The St. Louis arch has been thought to be a potential target for terrorists.Researchers at Washington University’s Center for Security Technologies are planning a surveillance system that recognizes aberrant traffic flow and then, using automatic target recognition, identifies and analyzes the danger.

A still from *Having a Ball*, one of three circus-themed e-cards by Kristine Ng.For the estimated 7 to10 million blind and visually impaired Americans, the Internet has proven to be the most powerful — and most empowering — tool since Braille. Widely available software programs such as JAWS for Windows and Windows-Eyes can read aloud online newspapers and magazines and other previously inaccessible materials. Yet as bandwidth and memory improve, businesses have increasingly sought to drive customers to glitzy, graphics-heavy Web sites that are more difficult, if not impossible, for blind users to navigate. Thanks to a group of senior design students at Washington University in St. Louis, blind and visually impaired Web users can now experience some of the Internet’s increasingly expansive potential. The 23 students — design, illustration and advertising majors in the School of Art — have created some of the first Web sites showcasing new accessibility components of Macromedia Flash MX, the increasingly popular authoring tool for Web interfaces, interactive video, Web-based games, streaming music and other multimedia content.