Last week the historic fortified town of Campeche, in the Yucatan peninsula of Mexico, was the centre for a Conference on the use of space technologies to conserve the world’s natural and cultural heritage, including UNESCO biosphere reserves.
Experts representing more than 30 countries attended this international conference on the ’Use of Space Technologies for the Conservation of Natural and Cultural Heritage’, organised by the National Institute of Anthropology and Historia (INAH) in Campeche, together with ESA, UNESCO and EURISY, a non-profit European organisation which aims to promote the use of space technologies.
Present were representatives of UNESCO World Heritage sites in the Mayan world (Mexico, Belize, Guatemala and Costa Rica); the Galapagos Islands (Ecuador); Iguazu Park (Brazil, Argentina); Old Havana (Cuba); the Taj Mahal (India); the Great Wall (China); Calakmul (Mexico); the Altai mountain range (Russia); Cocos Island (Costa Rica) and Machu Picchu (Peru). Experts in space technologies from ESA and NASA, together with members of the German, Canadian, Argentinean and Syrian space agencies, universities and research institutions, also attended the Conference.
Maurizio Fea | alfa
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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