На самом деле представления о ней были даже у древних греков. Они считали, что есть центр, к которому притягиваются все тела. Аристотель считал, что тяжёлые тела падают вниз, а лёгкие, наоборот, взлетают вверх.
➡️ Как и почему представления о гравитации изменились? Рассказал астрофизик Сергей Пилипенко.
На самом деле представления о ней были даже у древних греков. Они считали, что есть центр, к которому притягиваются все тела. Аристотель считал, что тяжёлые тела падают вниз, а лёгкие, наоборот, взлетают вверх.
➡️ Как и почему представления о гравитации изменились? Рассказал астрофизик Сергей Пилипенко.
Just days after Russia invaded Ukraine, Durov wrote that Telegram was "increasingly becoming a source of unverified information," and he worried about the app being used to "incite ethnic hatred." Russian President Vladimir Putin launched Russia's invasion of Ukraine in the early-morning hours of February 24, targeting several key cities with military strikes. Pavel Durov, a billionaire who embraces an all-black wardrobe and is often compared to the character Neo from "the Matrix," funds Telegram through his personal wealth and debt financing. And despite being one of the world's most popular tech companies, Telegram reportedly has only about 30 employees who defer to Durov for most major decisions about the platform. In addition, Telegram's architecture limits the ability to slow the spread of false information: the lack of a central public feed, and the fact that comments are easily disabled in channels, reduce the space for public pushback. If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats.
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