Для любой четверки точек A,B,C,D, отличной от ортоцентрической, окружности 9 точек треугольников ABC, BCD, ABD, ACD пересекаются в одной точке, которую называют точкой Понселе.
Для любой четверки точек A,B,C,D, отличной от ортоцентрической, окружности 9 точек треугольников ABC, BCD, ABD, ACD пересекаются в одной точке, которую называют точкой Понселе.
False news often spreads via public groups, or chats, with potentially fatal effects. "There is a significant risk of insider threat or hacking of Telegram systems that could expose all of these chats to the Russian government," said Eva Galperin with the Electronic Frontier Foundation, which has called for Telegram to improve its privacy practices. The account, "War on Fakes," was created on February 24, the same day Russian President Vladimir Putin announced a "special military operation" and troops began invading Ukraine. The page is rife with disinformation, according to The Atlantic Council's Digital Forensic Research Lab, which studies digital extremism and published a report examining the channel. Telegram, which does little policing of its content, has also became a hub for Russian propaganda and misinformation. Many pro-Kremlin channels have become popular, alongside accounts of journalists and other independent observers. The Security Service of Ukraine said in a tweet that it was able to effectively target Russian convoys near Kyiv because of messages sent to an official Telegram bot account called "STOP Russian War."
from ru
