В продолжение рубрики "Электротехника в деле". В этом выпуске рассмотрим: - какая мощность бывает в переменном токе; - что такое КВАР, ВАР и cos φ; - как правильно рассчитать мощность потребления; -подбор генераторов и инверторов и кое-что еще.
В продолжение рубрики "Электротехника в деле". В этом выпуске рассмотрим: - какая мощность бывает в переменном токе; - что такое КВАР, ВАР и cos φ; - как правильно рассчитать мощность потребления; -подбор генераторов и инверторов и кое-что еще.
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. Telegram does offer end-to-end encrypted communications through Secret Chats, but this is not the default setting. Standard conversations use the MTProto method, enabling server-client encryption but with them stored on the server for ease-of-access. This makes using Telegram across multiple devices simple, but also means that the regular Telegram chats you’re having with folks are not as secure as you may believe. "The argument from Telegram is, 'You should trust us because we tell you that we're trustworthy,'" Maréchal said. "It's really in the eye of the beholder whether that's something you want to buy into." Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. "Someone posing as a Ukrainian citizen just joins the chat and starts spreading misinformation, or gathers data, like the location of shelters," Tsekhanovska said, noting how false messages have urged Ukrainians to turn off their phones at a specific time of night, citing cybersafety.
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