Tree rings and radiocarbon dates

Article Abstract:

The concept of dendrochronology which made possible archaeologists' use of radiocarbon dating is discussed. The research of the astronomer AE Douglass in 1901 represented the first detailed study of tree rings and Willard LIbby introduced radiocarbon dating in the late 1940s with his method of dating organic remains.

Usage, Radiocarbon dating, Dendrochronology

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Frederica De Laguna:Honorary curator, American section

Article Abstract:

The famous anthropologist of Alaska's native people, Frederica De Laguna was affiliated to the Penn museum from the early 1930s. She was an inspiration and a guide to the students and colleagues and was like a bridge for generations, in the study of American anthropology.

Biography, Personality profile, Women anthropologists, Laguna, Frederica De

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Nothern exposure

Article Abstract:

Two documentary films, 'Nanook of the North' and 'The Fast Runner' are discussed. The difference between the stories of the two films is explained.

Comparative analysis, Documentary films, Documentary movies

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