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lake when it crashed? This 1963 photograph shows a portion of the Tunguska region as it appeared fifty five years after the blast, with new trees growing amid the dead, broken trunks and debris Later expeditions found from examination of tree height and growth rings, that after 1908 the growth rate in surviving trees as well as in trees which germinated after the explosion was markedly accelerated. [ Pobierz całość w formacie PDF ] |