Ten years of data from NASA’s Solar Dynamics Observatory combined with numerical models reveal the deep low musical notes of the Sun
motions with speeds on the order of 5 kilometers per
The statistical model with which global warming can be attributed to increasing concentrations of CO2 in the atmosphere was developed by former Director of the Max Planck Institute for Meteorology, Klaus Hasselmann, who will be receiving the Nobel Prize in Physics 2021 for his work.
increase in atmospheric CO2 concentrations, at 95 per
Das Sonnenobservatorium Sunrise III, das im Frühsommer nächsten Jahres die Sonne an einem Heliumballon aus einer Höhe von 35 Kilometern beobachten wird, hat heute am Max-Planck-Institut für Sonnensystemforschung (MPS) in Göttingen einen wichtigen Meilenstein erreicht: Erstmals konnten die wissenschaftlich-technischen Teams eine Messung mit Sonnenlicht durchführen. Beim so genannten „Hangtest“ öffnete sich das riesige Tor der MPS-Ballonhalle, um dem Observatorium so den direkten Blick in die Sonne zu ermöglichen. Der Test ist ein wichtiger Teil der aktuellen Vorbereitungen für den mehrtägigen Stratosphärenflug von Sunrise III im nächsten Jahr. Dabei wird das Observatorium beispielslose Messdaten aus der unteren Atmosphäre der Sonne, der Chromosphäre, einfangen.
Stattdessen mussten wir ihren Rat und ihre Expertise per
Very hot gas, as found in the sun’s corona or in close proximity to black holes, emits very intense x-rays. It reveals the locally prevailing physical conditions, such as temperature and density. But there is one problem that researchers have been battling with for decades: the intensity rates of important emission lines of iron measured in the laboratory do not match those calculated. This causes ambiguity over the magnitude of the gas derived from the x-ray spectra. An international team under the leadership of the Max Planck Institute for Nuclear Physics in Heidelberg has now solved the problem using an exceptionally accurate experiment: theory and experiment finally concur. In future, this will allow x-ray data from deep-space telescopes to be analysed in the underlying atomic models with a high degree of reliability.
In space, more than 99 per cent of all the visible
Following nine years of construction work and one year of technical preparations and tests, on 10 December 2015 the first helium plasma was produced in the Wendelstein 7-X fusion device at the Max Planck Institute for Plasma Physics (IPP) in Greifswald. The production of the first hydrogen plasma followed on 3 February 2016 and marked the start of the experimental operation of the device. The purpose of the Wendelstein 7-X, the world’s largest stellarator-type fusion device, is to investigate the suitability of this configuration for use in a power plant.
degrees Celsius at a density of around 1019 particles per
Scientists from the Forschungszentrum Jülich and the Max Planck Institute of Microstructure Physics in Halle have discovered the basis for the next generation of memory devices. In a ferroelectric material, they have, for the first time, been able to observe directly how dipoles, which store the information in this material, continuously rotate and therefore may be organised in circular structures. The report was published in the journal Science. The findings were obtained using a type of high-resolution transmission electron microscopy with especially sharp contrast, developed by the Jülich scientists. Arranging the dipoles in a circular structure could allow for significantly denser data storage than previously possible, while still ensuring fast writing and reading processes.
working memories with a density of several terabits per
Following nine years of construction work and one year of technical preparations and tests, on 10 December 2015 the first helium plasma was produced in the Wendelstein 7-X fusion device at the Max Planck Institute for Plasma Physics (IPP) in Greifswald. The production of the first hydrogen plasma followed on 3 February 2016 and marked the start of the experimental operation of the device. The purpose of the Wendelstein 7-X, the world’s largest stellarator-type fusion device, is to investigate the suitability of this configuration for use in a power plant.
degrees Celsius at a density of around 1019 particles per
Um auch Menschen, die empfindlich auf Koffein reagieren, den Genuss des schwarzen Gebräus zu ermöglichen, haben Wissenschaftler mehrere Entkoffeinierungsverfahren entwickelt.
Auf eines davon stieß im Jahr 1967 per Zufall Kurt
Seit 25 Jahren das DKRZ stellt maßgeschneiderte Rechenleistung, Datenspeicher und Beratung für die deutsche Klimaforschung bereit. Ein Festsymposium und Nutzerworkshop anlässlich des Jubiläums im Februar 2013 widmet sich dieser Erfolgsgeschichte.
Abb. 1: Fliegender Wechsel: Per Kran räumt die Cray
Zur Erforschung des Proteoms haben sich vor allem massenspektrometrische Methoden etabliert. Die SILAC-Methode (stable isotope labeling by amino acids in cell culture) hat bei Proteinquantifizierungen zwischen biologischen Proben geholfen.
Jede Woche werden Organe entnommen und per Massenspektrometer
