This convention is necessary in order to keep published radiocarbon results comparable to each other; without this convention, a given radiocarbon result would be of no use unless the year it was measured was also known—an age of 500 years published in 2010 would indicate a likely sample date of 1510, for example.In order to allow measurements to be converted to the 1950 baseline, a standard activity level is defined for the radioactivity of wood in 1950.
Natural world is the great source of inspiration and excitement; it holds ultimate visual beauty in its vast panorama ; the greatest source of intellectual interest through conversations.
Our list includes massive sites like aol, msn and yahoo chat rooms but also cult favorites like The WBS, The-Park, Talk City, Rounds, 123 Flash Chat and many more.
Our free webcam chat rooms are for teens, adults and seniors.
We've updated our article - "Where Have All The Chats Gone?
" to specifically answer that question for 20 different chat sites that have closed down.