30 ноября 1609 года Галилео Галилей направил на Луну свой первый телескоп и увидел там горы и кратеры. Как настоящий учёный, простым созерцанием астроном не удовлетворился и зарисовал поверхность Луны, создав, таким образом, первую карту спутника Земли. По информативности она мало отличалась от того, что изобразили 5 тысяч лет назад неолитические астрономы. По мере совершенствования телескопов на карту Луны наносились новые детали. Рисунки немецкого математика Кристофера Шейнера и поляка Яна Гевелия особыми подробностями ещё не отличались.
30 ноября 1609 года Галилео Галилей направил на Луну свой первый телескоп и увидел там горы и кратеры. Как настоящий учёный, простым созерцанием астроном не удовлетворился и зарисовал поверхность Луны, создав, таким образом, первую карту спутника Земли. По информативности она мало отличалась от того, что изобразили 5 тысяч лет назад неолитические астрономы. По мере совершенствования телескопов на карту Луны наносились новые детали. Рисунки немецкого математика Кристофера Шейнера и поляка Яна Гевелия особыми подробностями ещё не отличались.
But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. On Telegram’s website, it says that Pavel Durov “supports Telegram financially and ideologically while Nikolai (Duvov)’s input is technological.” Currently, the Telegram team is based in Dubai, having moved around from Berlin, London and Singapore after departing Russia. Meanwhile, the company which owns Telegram is registered in the British Virgin Islands. In February 2014, the Ukrainian people ousted pro-Russian president Viktor Yanukovych, prompting Russia to invade and annex the Crimean peninsula. By the start of April, Pavel Durov had given his notice, with TechCrunch saying at the time that the CEO had resisted pressure to suppress pages criticizing the Russian government. Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders. Meanwhile, a completely redesigned attachment menu appears when sending multiple photos or vides. Users can tap "X selected" (X being the number of items) at the top of the panel to preview how the album will look in the chat when it's sent, as well as rearrange or remove selected media.
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