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In Arctic Alaska, the Warming Climate Threatens an Ancient Culture（图）
Arctic Warming Climate Ancient Culture
2006/12/15
SHISHMAREF, Alaska—Over the past 10 years, while much of the United States has debated the potential threat of global climate change, nearly 600 residents of this remote island village have seen its e...
Ancient calculator was 1,000 yrs ahead of its time
astronomi calcalculatormade X-ray tomography
2006/12/1
November 29, 2006，An ancient astronomical calculatormade at the end of the 2nd century BC was amazingly accurate and more complex than any instrument for thenext 1,000 years, scientists said on Wednes...
Reactivation hazard mapping for ancient landslides in West Belgium
Reactivation hazard mapping ancient landslides West Belgium
2009/12/29
Several examples in western Europe have shown that, at least for deep-seated rotational slides, reactivation of formerly slipped masses is a more frequent phenomenon than the occurrence of new landsli...
Ancient Ceramic Analysis by Neutron Activation in Association with Multivariate Methods
Ancient Ceramic Analysis Neutron Activation Multivariate Methods
2010/10/15
We report a comparative study of two archaeological sites, Bela Vista and Serrano, located in the Araruama region of the state of Rio de Janeiro, in Brazil. The elemental geochemical compositions of t...
The Role of Sepiolite-Palygorskite in the Decay of Ancient Egyptian Limestone Sculptures
Clays Egyptian Sculptures ESEM Limestone Decay Polygorskite Sepiolite Swelling
2011/12/8
Abstract: An ancient Egyptian limestone sculpture was found to be undergoing major structural decay when stored in a museum environment. Mineralogical and petrographic analysis of the limestone showed...
Maya Blue Paint: An Ancient Nanostructured Material
Maya Blue Paint Nanostructured Material
2011/11/8
Maya blue paint was often used in Mesoamerica. The origin of its color and its resistance to acids and biocorrosion have not been fully understood. High-resolution transmission electron microscopy, el...