A View from Emerging Technology from the arXiv Whirlpools 'n' Whirlwinds The best of the rest from the Physics arXiv this week. July 11, 2009 Apparent Places with an Ellipsoidal Geometry of Refraction in the Earth’s Atmosphere Entangled Black Holes as Ciphers of Hidden Information Jamming Transition in Air Transportation Networks Open Problems in Universal Induction and Intelligence Quintom Wormholes Cut off? Read unlimited articles today. Become an Insider Already an Insider? Log in.