TED Con­fer­ence, a great annu­al con­fer­ence on any­thing and every­thing new and mean­ing­ful, announces the pub­lic launch of their revamped web­site with great con­tent and social net­work­ing tools, all under the ban­ner “Ideas worth spreading”. You can exer­cise your mind by learn­ing about most sci­ence and tech­nol­o­gy sub­jects through won­der­ful TEDTalks video clips. Some examples:…