Scientist Says Concrete Was Used in Pyramids
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If true, historians say, this would be the earliest known application of concrete technology.
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The Islamic pattern-making process appears to have involved an advanced math of quasi crystals.
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Volcanologists studying erupted rocks say they have new insights into what might trigger explosive eruptions.
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Khafre, the second-largest of the three Great Pyramids at Giza, outside Cairo, is to reopen on Saturday after being closed for nearly two years for repairs and restoration, the Supreme Council of Antiquities said.
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New findings are some of the first strong evidence that the ancient Maya civilization had a market economy similar in some respects to societies today.
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The presence of a particular type of hematite, a mineral mostly associated with water, along with large, sandy areas, indicates that the red planet once had water, said Robert Denise, a scientist at the Jet Propulsion Laboratory and a member of the flight
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Egypt&#39;s antiquities chief on Thursday revealed a 2,500-year-old hidden tomb under the shadow of one of Giza&#39;s three giant pyramids, containing 400 pinkie-finger-sized statues and six coffin-sized niches carved into granite rock.
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The stones were likely heated in a fire and quickly doused in cold water, cracking before being placed along the serpentine earthen mound. The result: a curving paved structure possibly used in a ritual by Britain's Bronze Age inhabitants.
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WASHINGTON --Â A village of small houses that may have sheltered the builders of the mysterious Stonehenge - or people attending festivals there - has been found by archaeologists studying the stone circle in England.
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Now that Donald Norman and Lab readers have analyzed the water faucets in the office building of the future, let us contemplate an even more important topic: the elevators. Dr. Norman, the Northwestern cognitive scientist and illustrious techno-critic, had no trouble dealing with the elevators in the New York Times new headquarters, but that's because [...].
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&quot;We have evidence that interaction with liquid water changed the composition of this rock,&quot; said Steve Squyres of Cornell University, chief investigator for the science instruments on both rovers. &quot;This is different from the rocks out on ...
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Two new studies throw some doubt into the conventional wisdom of what the Earth was like when dinosaurs roamed it
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Superblack material made from microscopic carbon nanotubes is produced in a US laboratory.
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An extremely high-strength concrete formula had been used successfully for the first time in New York City, as part of the Freedom Tower project.
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British archeologists have discovered evidence of more than two dozen houses belonging to the ancient people who built Stonehenge, a find likely to open an important chapter in the study of one of the world's most famous monuments.
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A U.S. physicist says he's disproved a 50-year-old theory that composites must be composed of only stable materials to be stable overall.
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Scientists analysing data from the Mars exploration Rover missions believe water was involved in the formation of rocks on the planet.