Ranga Yogeshwar is one of the best known TV presenters in Germany, well known for moderating such programs such as the German IQ show and various science programs. He also sits on several juries. He commenced his professional career in journalism in 1983, initially working with various publishing houses, later leading on to activities in Radio and Television. During a sojourn in India in 1985, he conducted seminars and conferences at the Indian Institute of Science, Bangalore and other institutions. Since 1987 he has been active as Science Editor at WDR Germany TV, the nationwide German TV network of public rights. He presented and produced innumerable programmes (Wissenschaftsshow, Kopfball, Bilder aus der Wissenschaft, Lillipuz, Wissenschaft Live, Globus). Between 1995 and 2001 he was Acting Chief and until 2005 Chief of the Science TV Programme Group at WDR. He founded his own company xplainy. GmbH and works as an independent author and moderator of TV programmes like "Quarks & Co" (WDR), "W wie Wissen" (ARD), "Wissenschaftsforum" (Phoenix) and "Die Grosse Show der Naturwunder" (ARD). He also is author/co-author of several newspaper and magazine columns and articles and has also published many bestselling books. He is engaged in numerous national and international projects and is member of boards and committees of various institutions. Ranga is a founder member of the Children's and Youth Foundation of Hennef. He has been awarded many prizes for his work and even an Asteroid is named after him. Ranga Yogeshwar is a very experienced speaker impressing his audience with his science expertise.