📚 Сергей Валерьевич Маркелов был популяризатором науки, организатором и составителем заданий Математического праздника, автором задач Московской олимпиады школьников по математике, Турнира Городов, Турнира Ломоносова, Олимпиады по геометрии им. И.Ф. Шарыгина.
⭐️ Коллеги собрали несколько его увлекательных заданий, попробуйте решить их и вы: olimpiada.ru/article/1161
📚 Сергей Валерьевич Маркелов был популяризатором науки, организатором и составителем заданий Математического праздника, автором задач Московской олимпиады школьников по математике, Турнира Городов, Турнира Ломоносова, Олимпиады по геометрии им. И.Ф. Шарыгина.
⭐️ Коллеги собрали несколько его увлекательных заданий, попробуйте решить их и вы: olimpiada.ru/article/1161
In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so. In February 2014, the Ukrainian people ousted pro-Russian president Viktor Yanukovych, prompting Russia to invade and annex the Crimean peninsula. By the start of April, Pavel Durov had given his notice, with TechCrunch saying at the time that the CEO had resisted pressure to suppress pages criticizing the Russian government. Again, in contrast to Facebook, Google and Twitter, Telegram's founder Pavel Durov runs his company in relative secrecy from Dubai. There was another possible development: Reuters also reported that Ukraine said that Belarus could soon join the invasion of Ukraine. However, the AFP, citing a Pentagon official, said the U.S. hasn’t yet seen evidence that Belarusian troops are in Ukraine. Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders.
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