Author(s):  
Vladimir V. Zaparyi ◽  
◽  
Aleksandr V. Barmin ◽  
Roman S. Tarasov ◽  
Keyword(s):  

Author(s):  
N. V. Shevtsov

Grand uprising led by Pugachev seized a vast area from the middle reaches of the Volga, the Urals and the Kazakh steppes. Thousands of people from different classes and nationalities joined rebellious Ural Cossacks in 1773. From the beginning, the uprising was of antimonarchic, not noble character, although its leader, and posed as a resurrected Emperor Peter III. During two years since 1773 the rebels were holding at bay the entire Russian Empire, becoming a real threat to the power of Catherine II. Pugachev's Rebellion is a subject of numerous works of Russian historians, writers, articles, research journalists and ethnographers. But perhaps the most famous "History of Pugachev" is written by a classic of Russian literature Alexander Pushkin. His work became one of the first (if not the first) serious historical studies on Pugachev's Rebellion. The historical science of XIX century, especially its first half, doesn't know many writings on the uprising. The fact that historians did not dare to write about Pugachev and the events that took place in 1773-1775 years, as Catherine II prohibited even mention the uprising. The decree of the senate ordered even rename the place, where the described events took place, for example, the Yaik river and Yaitsk town in order "to bring all that has happened to eternal oblivion." The famous historian S.M. Solovyov did not have advance to write about Pugachev. Death interrupted his work when his 29 volume ws in process, which he planned to complete with the execution of the leader of the uprising. Russian historian V.O. Klyuchevskii did not write many pages devoted to Pugachev as well. The author of this article visited the places, where the events took place, and repeated the journey of A.S. Pushkin, who visited the region in 60years after Pugachev's Rebellion. By talking with the locals, visiting ancient towns and villages, I sought to find out what has now preserved since ancient times, whether it is possible today to see evidence of the uprising or the famous trip of A.S. Pushkin.


Author(s):  
N. G. Suhova

G. P. Helmersen (1803—1885), a mining engineer, professor and director of the Mining Institute, the first academician of the St. Petersburg Academy of Sciences in geology, had made a significant contribution to Russian geology. For many years he conducted geological researches in different parts of European Russia, the Urals and Altai. Helmersen paid much attention to the analysis of coal deposits in Donbas, in Moscow lignite basin and in the Urals. Contemporaries believed that his works were important not only for geology, but also for geography of the XIX century. The article attempts to confirm this opinion.


2020 ◽  
Author(s):  
Budrina L.A.

The interest in malachite as a symbol had been gradually formed throughout the   XIX century. The beginning of the next century attracted North America to the stone. In the mid-XX century, the designers turned to malachite as the basis for making recognizable prints that benefited from the gorgeous material with less expensive means. At the beginning of the XXI century, the fashion for malachite print has been restored, gradually comprising an increasing number of fashion designers. The interest in the color and pattern of the stone can become one of the starting points for the promotion of the Urals. Keywords: malachite, fashion, Tony Duquette, Fornasetti, Dolce & Gabbana, Christian Louboutin, Monique Lhuillier


Author(s):  
N. I. Braynchaninova ◽  
A. B. Makeyev ◽  
A. R. Makavetskas

The microprobe tests of the supposed platinum from the collection of F.A. Keller at the State geological museum of Russian Academy of Sciences have been carried out for the first time. The results have shown that the samples were indeed acquired in the XIX century in the Urals in Nizhnyi Tagil, a famous industrial area, supplied from Gospodskaya mine, being operated in that times. Concentrate platinum according to the shape and mineral compound corresponds to Isovsko-Turinskaya concentrates from Svetloborsky concentrically zoned dunite-clinopyroxenite platinum-bearing massif. Analyses of the chemical composition of the mineral phases have allowed making a list of the native metals minerals and platinum group minerals (PGM) in this collection: isoferroplatinum, r-isoferroplatinum, golden isoferroplatinum, copper-nickel tetraferroplatinum, osmium, Ru-osmium, iridium, Ru-iridium (ruthenosmiride), fine gold and tin.


Author(s):  
Yeshayahu Talmon

To achieve complete microstructural characterization of self-aggregating systems, one needs direct images in addition to quantitative information from non-imaging, e.g., scattering or Theological measurements, techniques. Cryo-TEM enables us to image fluid microstructures at better than one nanometer resolution, with minimal specimen preparation artifacts. Direct images are used to determine the “building blocks” of the fluid microstructure; these are used to build reliable physical models with which quantitative information from techniques such as small-angle x-ray or neutron scattering can be analyzed.To prepare vitrified specimens of microstructured fluids, we have developed the Controlled Environment Vitrification System (CEVS), that enables us to prepare samples under controlled temperature and humidity conditions, thus minimizing microstructural rearrangement due to volatile evaporation or temperature changes. The CEVS may be used to trigger on-the-grid processes to induce formation of new phases, or to study intermediate, transient structures during change of phase (“time-resolved cryo-TEM”). Recently we have developed a new CEVS, where temperature and humidity are controlled by continuous flow of a mixture of humidified and dry air streams.


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