On November, 21st, 2010 a lecture was held within the frames of the “Unity is Diversity” exhibition which is taking place in the Youth’s Club “Frunzensky” in St.Petersburg, RF. The lecturer was E.A.Tomsha, Chairman of the St.Petersburg Branch of the International Centre of the Roerichs. He acquainted the visitors with scientific research in the  spheres of knowledge which help to understand nature events and to explain interaction of a man, nature and cosmos in diversity.

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