All information these cookies obtain is aggregated and therefore nameless. If you don't allow these cookies we will never know when you have frequented our website, and will not be in a position to monitor its effectiveness. Enroll in Vital California for news, options and proposals within the L.A. Times http://forum.dydaktyka.fizyka.umk.pl/viewtopic.php?f=8&t=127759&p=1106434#p1106434