Leading UK scientists fear that one of South America’s leading natural tourist destinations, the San Rafael Glacier in Patagonian Chile, which is renowned for the spectacular way in which it releases icebergs into the San Rafael Laguna, may soon retreat to a point where it no longer reaches the sea. This, they warn, might remove one of the main reasons why thousands of tourists travel to this remote corner of Chile every year.
The glaciologists have been studying the San Rafael Glacier, one of the fastest-moving glaciers in the world, and others in the Northern Patagonian Icecap, for the past 13 years. Following their recent visit there on a research project with Raleigh International, Dr Neil Glasser and Dr Krister Jansson from the University of Wales, Aberystwyth and Dr Stephan Harrison from Oxford University have revealed that the ice front of the glacier has receded over 1km since the early 1990s and iceberg calving activity has been dramatically reduced.
Dr Neil Glasser said, “The San Rafael glacier is an amazing natural phenomenon which flows from an altitude of 3000 metres to the San Rafael Laguna at sea level. In latitude terms an equivalent glacier in the northern hemisphere would flow into the Mediteranean. This means that the glacier is a very sensitive barometer of global climate change.”
Arthur Dafis | alfa
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
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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For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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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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