A View from Emerging Technology from the arXiv Heat 'n' dust The best of the rest from the physics arXiv this week: October 10, 2009 Modular Traffic Sign Recognition Applied to On-Vehicle Real-Time Visual Detection of American and European Speed Limit Signs. Exploiting Disorder for Perfect Focusing Green Modulation in Proactive Wireless Sensor Networks Computing of Applied Digital Ecosystems Forming Jupiter, Saturn, Uranus and Neptune in Few Million Years by Core Accretion The latest Insider Conversation is live! Listen to the story behind the story. Subscribe today Already a Premium subscriber? Log in.