The natural vegetation covering the globe looks like it does because of the climate, doesnt it? Forests are found where water is abundant and it is not too cold, deserts are found where it is dry. This is what our intuition tells us – but it is not always true.
New research carried out by Bond, Woodward and Midgley from University of Cape Town, University of Sheffield and the South African National Biodiversity Institute of and published in the February 2005 issue of New Phytologist has shown that a potent force overrides climate in shaping vegetation – fire.
Much of the world is covered by vegetation that seems out of place, for example in Mediterranean regions of South Africa low shrublands are found where rainfall is great enough to support forests. We also know, from satellite imagery, that wildfires are a global phenomenon occurring on all vegetated continents. Bond et al. suspected that fires are common in areas where vegetation does not "fit" the climate. If true, this suggests that fire has a major effect on the ecosystems of the world. So, how different would the world look if we could switch fire off?
Minimized water consumption in CSP plants - EU project MinWaterCSP is making good progress
05.12.2017 | Steinbeis-Europa-Zentrum
Jena Experiment: Loss of species destroys ecosystems
28.11.2017 | Technische Universität München
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...
An interdisciplinary group of researchers interfaced individual bacteria with a computer to build a hybrid bio-digital circuit - Study published in Nature Communications
Scientists at the Institute of Science and Technology Austria (IST Austria) have managed to control the behavior of individual bacteria by connecting them to a...
Physicists in the Laboratory for Attosecond Physics (run jointly by LMU Munich and the Max Planck Institute for Quantum Optics) have developed an attosecond electron microscope that allows them to visualize the dispersion of light in time and space, and observe the motions of electrons in atoms.
The most basic of all physical interactions in nature is that between light and matter. This interaction takes place in attosecond times (i.e. billionths of a...
Transistors based on carbon nanostructures: what sounds like a futuristic dream could be reality in just a few years' time. An international research team working with Empa has now succeeded in producing nanotransistors from graphene ribbons that are only a few atoms wide, as reported in the current issue of the trade journal "Nature Communications."
Graphene ribbons that are only a few atoms wide, so-called graphene nanoribbons, have special electrical properties that make them promising candidates for the...
08.12.2017 | Event News
07.12.2017 | Event News
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08.12.2017 | Life Sciences
08.12.2017 | Information Technology
08.12.2017 | Information Technology