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Nature Geoscience 10, 274 (2017). doi:10.1038/ngeo2912 Authors: Jasper F. Kok, David A. Ridley, Qing Zhou, Ron L. Miller, Chun Zhao, Colette L. Heald, Daniel S. Ward, Samuel Albani & Karsten Haustein Nature Geoscience – Issue – nature.com science feeds
This 7.19-carat alexandrite was cut to feature its beautiful color change. When the light source changes from daylight to incandescent light, the gem’s color changes from bluish green to reddish purple. Alexandrite is the variety of chrysoberyl BeAl2O4 which changes … Continue reading
Sherry Vargson ignites the tap water in her kitchen in Granville Summit, Pennsylvania, in 2012. Her family?s farm is in the Marcellus Shale region, where the fracking rigs have contributed to increased methane in the water supply. Melanie Stetson Freeman … Continue reading
P(ANSA) – Rome, April 9 – The Lower House on Wednesday approved a bill that will ensure gender equality in the lists of Italian candidates for future European elections.BRThe measure, which was approved by the Senate in March, will not … Continue reading