It was not that cold in subarctic areas of Russia during the epoch of the latest glaciation. This has been proved by the remains of animals found there - not only remains of such frost-resisting animals as mammoths and reindeers, but also those of horses.
During the latest ice age, i.e. 25-15,000 years ago, it was not that cold in the subarctic part of the trans-Ural region as it had been considered earlier. The territory was not covered by glacial wilderness, but by dry and low-snowy steppe. In these conditions, large herbivorous animals, such as mammoths, woolly rhinoceroses (Coelodonta), reindeers, musk-oxen and even ordinary horses felt pretty well. Glaciation took place much earlier in these area – more than 40,000 years ago.
Such conclusion has been made by the researchers of St.-Petersburg State University, after they investigated remains of plants and bones of large animals found on the banks of the Ob River in the area of polar circle. Bones and teeth of the mammoth, musk-ox and horse, pieses of wood, twigs of bushes, peat and silt were exposed to radiocarbon analysis. Almost all bones turned out to be younger than 40,000 years, while glacial sediment is evidently more ancient.
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21.06.2019 | Leibniz Institute for Tropospheric Research (TROPOS)
News from the diamond nursery
21.06.2019 | Goethe-Universität Frankfurt am Main
From June 25th to 27th 2019, the Fraunhofer Institute for Digital Media Technology IDMT in Ilmenau (Germany) will be presenting a new solution for acoustic quality inspection allowing contact-free, non-destructive testing of manufactured parts and components. The method which has reached Technology Readiness Level 6 already, is currently being successfully tested in practical use together with a number of industrial partners.
Reducing machine downtime, manufacturing defects, and excessive scrap
The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.
Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...
The well-known representation of chemical elements is just one example of how objects can be arranged and classified
The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...
Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.
Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...
Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.
The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...
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