This theory suggests that in its early history the Earth suffered glaciations so major that it froze over completely. It remains controversial, but has proved extremely fruitful for our understanding of how the Earth system functioned many hundreds of millions of years ago.
In a 1998 paper, Hoffman proposed that a drop in the level of carbon dioxide in the atmosphere 750 million years ago caused a global fall in temperature that very nearly wiped out all life on Earth. Hoffman’s most significant impact on Earth science has arisen from his development of holistic models of geological processes during the Precambrian (c. 4500 – 542 million years ago). The scope of this subsequent work shows a remarkable interdisciplinary understanding, and stands as an exemplary model of how Earth science research should be conducted.
The Wollaston Medal (named for William Hyde Wollaston 1766-1828, the discoverer of the element Palladium, in which the medal is struck) was first awarded in 1831 to William Smith, known as “the father of English Geology”, who is credited with creating the first geological map of Britain. It was bestowed on Charles Darwin in 1859 - the same year in which On the Origin of Species was published. The award, made some months earlier, was given in recognition of Darwin’s “judicious and vigorous efforts on some of the harder problems of geology”.
Past recipients of the Wollaston also include Richard Owen, founder of the Natural History Museum in London; William Buckland, who published the first full description of what would later become known as the dinosaur, and Charles Lyell.
In addition to the Wollaston medal, the society made the following awards for 2009.•Wollaston Medal - Prof. Paul Hoffman (Harvard University)
Sarah Day | alfa
ERC Project set to boost application of adhesive structures
19.03.2018 | INM - Leibniz-Institut für Neue Materialien gGmbH
TIB advances implementation of transition towards Open Access in high energy physics
13.03.2018 | Technische Informationsbibliothek (TIB)
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.
In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
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