A View from Emerging Technology from the arXiv Tittle 'n' Tattle The best of the rest from the Physics arXiv blog this week. July 4, 2009 A Solar Cycle Lost in 1793-1800: Early Sunspot Observations Resolve the Old MysteryUnjamming a Granular Hopper by Vibration Icequakes as Precursors of Ice AvalanchesChemical Power for Microscopic Robots in CapillariesIntrusion Detection System Using Advanced Honeypots(Non)existence of Pleated Folds: How Paper Folds Between Creases Cut off? Read unlimited articles today. Become an Insider Already an Insider? Log in.