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Stories about: polarized

Rare Magnet Created by Straining A rare type of magnet that has a permanent magnetic field and that is also electrically polarized, is the latest creation of a team of scientists.The idea of such a material was first theorized by Craig Fennie and Karin Rabe, from the School of Applied and Engineering Physics, at Cornell University, in 2006.They said... 20 August 2010 06:54 GMT New Type of Vision: It Detects Circular Polarized Light There are various types of vision, from the one detecting visible light to the others detecting ultraviolet light and linear polarized light. A new research published in the journal "Current Biology" describes a fourth type of vision never seen before in any animal: mantis shrimps (Stomatopods), a type of sea crustac... 21 March 2008 03:54 GMT Sunlight and Life Behavior We, people, depend on light. Over 80 % of the information we get is visual. That's why during the night we employ artificial light when we do not sleep, in order to prolong our activity. The dark is associated by human beings with fear, uncertainty and even dread. It's a legacy from the monkey stage: as diu... 4 May 2007 19:21 GMT