Исполнилось 150 лет со дня рождения создателя советской научной школы горной механики Александра Германа. Он проектировал крупные предприятия на Донбассе, Урале, Кузбассе и в других горнодобывающих районах страны.
К научным заслугам Германа относятся точное уравнение теоретического напора турбомашин, доказательство закона конгруэнтности характеристик турбомашин, создание научных принципов автоматизированной системы управления подъёмными машинами.
А ещё этот учёный писал красивую музыку, которую высоко ценил Сергей Рахманинов, увлекался театром и в студенческие годы успел подраться на дуэли с бароном Петром Врангелем.
Исполнилось 150 лет со дня рождения создателя советской научной школы горной механики Александра Германа. Он проектировал крупные предприятия на Донбассе, Урале, Кузбассе и в других горнодобывающих районах страны.
К научным заслугам Германа относятся точное уравнение теоретического напора турбомашин, доказательство закона конгруэнтности характеристик турбомашин, создание научных принципов автоматизированной системы управления подъёмными машинами.
А ещё этот учёный писал красивую музыку, которую высоко ценил Сергей Рахманинов, увлекался театром и в студенческие годы успел подраться на дуэли с бароном Петром Врангелем.
Telegram boasts 500 million users, who share information individually and in groups in relative security. But Telegram's use as a one-way broadcast channel — which followers can join but not reply to — means content from inauthentic accounts can easily reach large, captive and eager audiences. The gold standard of encryption, known as end-to-end encryption, where only the sender and person who receives the message are able to see it, is available on Telegram only when the Secret Chat function is enabled. Voice and video calls are also completely encrypted. The company maintains that it cannot act against individual or group chats, which are “private amongst their participants,” but it will respond to requests in relation to sticker sets, channels and bots which are publicly available. During the invasion of Ukraine, Pavel Durov has wrestled with this issue a lot more prominently than he has before. Channels like Donbass Insider and Bellum Acta, as reported by Foreign Policy, started pumping out pro-Russian propaganda as the invasion began. So much so that the Ukrainian National Security and Defense Council issued a statement labeling which accounts are Russian-backed. Ukrainian officials, in potential violation of the Geneva Convention, have shared imagery of dead and captured Russian soldiers on the platform. 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. What distinguishes the app from competitors is its use of what's known as channels: Public or private feeds of photos and videos that can be set up by one person or an organization. The channels have become popular with on-the-ground journalists, aid workers and Ukrainian President Volodymyr Zelenskyy, who broadcasts on a Telegram channel. The channels can be followed by an unlimited number of people. Unlike Facebook, Twitter and other popular social networks, there is no advertising on Telegram and the flow of information is not driven by an algorithm.
from br
