красивий факт про який я взнав ще давно, але звернув увагу лише зараз. теорема скутіна: для фокуса S еліпса штейнера, чевіани що є продовженнями AS, BS, CS - рівні.
красивий факт про який я взнав ще давно, але звернув увагу лише зараз. теорема скутіна: для фокуса S еліпса штейнера, чевіани що є продовженнями AS, BS, CS - рівні.
Recently, Durav wrote on his Telegram channel that users' right to privacy, in light of the war in Ukraine, is "sacred, now more than ever." Individual messages can be fully encrypted. But the user has to turn on that function. It's not automatic, as it is on Signal and WhatsApp. In the United States, Telegram's lower public profile has helped it mostly avoid high level scrutiny from Congress, but it has not gone unnoticed. Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. Ukrainian President Volodymyr Zelensky said in a video message on Tuesday that Ukrainian forces "destroy the invaders wherever we can."
from hk
