The damage is sometimes only centimeters deep. Three engineers explain the colors of burned masonry and other signs preservationists look for amid another destructive fire year.
Articles on Stones
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Lichens bridge the living and non-living – understanding them allows us to better see how to conserve our heritage, and also ourselves.
With a little guidance and a lot of practice, even you can make stone tools the way our oldest ancestors did – and learn to recognize the signs of a deliberately made tool.
Without proper hydration, good diet and hygiene, the body can turn its fluids into stone.
Mineralogical analysis of 5,000-year-old stone beads from Turkana, Kenya suggest a novel mortuary tradition by early pastoralists.
Scientific inspiration struck a geologist after many walks through the woods in New York and New England. These ruins hold the secret of where the compass pointed north when they were built centuries ago.
Top contributors
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Research Assistant Professor, Center for Advanced Spatial Technologies, University of Arkansas
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Distinguished Teaching Professor of Atmospheric and Environmental Sciences, University at Albany, State University of New York
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Senior Lecturer, School of Psychology and Neuroscience, University of Bristol
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Ph.D. Candidate in Anthropology, Institute of Human Origins, Arizona State University
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Lecturer in Physical Geography, University of Oxford
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Assistant Professor of Structural Mechanics and Structures, Universidade de Lisboa
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Associate Professor of Architectural Engineering, Penn State
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Associate Professor of Geo-Monitoring and Data Analytics, Delft University of Technology
