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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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
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