For more than four centuries botanists have been trying to comprehend the abundance encountered on all continents, habitats and climatic regions. However, their knowledge is still incomplete and constantly changing. The exhibition runs from April 27th 2012 to February 24th 2013 in Berlin. All exhibition texts are in German and English.
Flora writing is one of the basic assignments of biodiversity research. These annotated inventories of a region’s plant diversity allow us to capture `Flora’s treasures’, as well as to determine plants in the field. These `stock-taking’ activities along with constant monitoring become increasingly important, as global plant diversity is increasingly threatened by human interference.
Learn about functions and work flow of Floras and meet the people behind important projects. Interactive stations as well as bibliophilic treasures await you in this exhibition.
Enjoy a close-up view on `Flora’s treasures’ when strolling through the Botanic Garden. The Path of Floras matches the exhibition topic and leads you to 15 different regions of the world. Learn more about corresponding Floras and characteristic plants of the respective areas at the stations.
A richly illustrated catalogue will be published, including all German and English texts. Group tours can be arranged to individual times.Press tour and Preview: SAVE THE DATE
http://www.botanischer-garten-berlin.de – Botanic Garden and Botanical Museum Berlin-Dahlem
Gesche Hohlstein | idw
LaserTAB: More efficient and precise contacts thanks to human-robot collaboration
25.09.2017 | Fraunhofer-Institut für Lasertechnik ILT
OLEDs applied to paper-thin stainless steel
21.09.2017 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Controlling electronic current is essential to modern electronics, as data and signals are transferred by streams of electrons which are controlled at high speed. Demands on transmission speeds are also increasing as technology develops. Scientists from the Chair of Laser Physics and the Chair of Applied Physics at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have succeeded in switching on a current with a desired direction in graphene using a single laser pulse within a femtosecond ¬¬ – a femtosecond corresponds to the millionth part of a billionth of a second. This is more than a thousand times faster compared to the most efficient transistors today.
Graphene is up to the job
At the productronica trade fair in Munich this November, the Fraunhofer Institute for Laser Technology ILT will be presenting Laser-Based Tape-Automated Bonding, LaserTAB for short. The experts from Aachen will be demonstrating how new battery cells and power electronics can be micro-welded more efficiently and precisely than ever before thanks to new optics and robot support.
Fraunhofer ILT from Aachen relies on a clever combination of robotics and a laser scanner with new optics as well as process monitoring, which it has developed...
Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.
A warming planet
Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.
The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...
Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...
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26.09.2017 | Physics and Astronomy
26.09.2017 | Information Technology