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    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.
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    Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows

    Scientists have determined the temperature near the Earth’s center to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models that the temperature difference between the solid core and the mantle above, must be at least 1500 degrees to explain why the Earth has a magnetic field. For more information about this study, see the press release from the European Synchrotron Radiation Facility.
  • Ocean Volcanic Rocks Contain Samples of Recycled Crust
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    Ocean Volcanic Rocks Contain Samples of Recycled Crust

    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth’s crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including Carnegie’s Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is published in Nature. Oceanic crust sinks into the Earth’s mantle at so-called subduction zones, where two plates come together. Much of what happens to the crust during this journey is unknown. Model-dependent studies for how long subducted material can exist in the mantle are uncertain and evidence of very old crust returning to Earth’s surface via upwellings of magma has not been found until now. For more information about these results, see the press release from the Carnegie Institution.
This wood carving depicts Shango, the Yoruba god of thunder and lighting.
Click on image for full size
Image Courtesy of the Hamill Gallery of African Art, Boston, MA

Shango, Yoruba God of Thunder and Lightning

Shango was the forth king of the ancient Oyo Empire, the West African center of culture and politics for the Yoruba people. The Oyo Empire thrived from the fifteenth century until 1835. Today, there are about 30 million Yoruba people in West Africa, most in Nigeria.

Shango was a powerful king, but some of the people in the Oyo Empire thought he was unfair. When two of his ministers challenged him for the throne, Shango fled into the forest. He wandered in the forest for a long time and eventually hung himself from a tree.

After Shango died, his enemies' houses were set on fire, probably by Shango's friends. But some people believed Shango had gone up into the heavens and was sending fire down to Earth. That’s how Shango became known as the god of thunder and lightning.

As the god of thunder and lightning, Shango has some powerful energy. In artwork he is often depicted with a double ax on his head, the symbol of a thunderbolt, or he is depicted as a fierce ram. Shango’s thunderous energy became a symbol of the resistance of the Yoruba people during the 19th Century when many Yoruba people were taken from Africa to the Americas as slaves.

Last modified July 24, 2008 by Lisa Gardiner.

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