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S.Markelov. Circles and parabolas

// А.Акопян пишет: «В книжке с картинками есть целая серия задач про параболы, для которых выполняются классические теоремы про окружности. Мало кто знает, но этот трюк обнаружил Серёжа. Сейчас это уже является базой для продвинутых олимпиадных геометров, но тогда это было полной неожиданностью.»



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S.Markelov. Circles and parabolas

// А.Акопян пишет: «В книжке с картинками есть целая серия задач про параболы, для которых выполняются классические теоремы про окружности. Мало кто знает, но этот трюк обнаружил Серёжа. Сейчас это уже является базой для продвинутых олимпиадных геометров, но тогда это было полной неожиданностью.»

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In addition, Telegram now supports the use of third-party streaming tools like OBS Studio and XSplit to broadcast live video, allowing users to add overlays and multi-screen layouts for a more professional look. Apparently upbeat developments in Russia's discussions with Ukraine helped at least temporarily send investors back into risk assets. Russian President Vladimir Putin said during a meeting with his Belarusian counterpart Alexander Lukashenko that there were "certain positive developments" occurring in the talks with Ukraine, according to a transcript of their meeting. Putin added that discussions were happening "almost on a daily basis." One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals. Lastly, the web previews of t.me links have been given a new look, adding chat backgrounds and design elements from the fully-features Telegram Web client. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion.
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