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آزمایش‌های جدید با مواد کوپرات، رابطه بین امواج موسوم به چگالی بار و یک حالت القا شده با نور که شبیه ابررسانایی است را بررسی کرده‌اند. در سال 2011 فیزیکدانان مشاهده شگفت‌انگیزی انجام دادند: یک ماده کوپرات (cuprate) که در معرض پالس‌های قوی نور قرار می‌گرفت، در دمایی بالاتر از دمای بحرانی خود به طور ...
آزمایش‌های جدید با مواد کوپرات، رابطه بین امواج موسوم به چگالی بار و یک حالت القا شده با نور که شبیه ابررسانایی است را بررسی کرده‌اند. در سال 2011 فیزیکدانان مشاهده شگفت‌انگیزی انجام دادند: یک ماده کوپرات (cuprate) که در معرض پالس‌های قوی نور قرار می‌گرفت، در دمایی بالاتر از دمای بحرانی خود به طور ...
At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so. "Your messages about the movement of the enemy through the official chatbot … bring new trophies every day," the government agency tweeted. Update March 8, 2022: EFF has clarified that Channels and Groups are not fully encrypted, end-to-end, updated our post to link to Telegram’s FAQ for Cloud and Secret chats, updated to clarify that auto-delete is available for group and channel admins, and added some additional links. Telegram Messenger Blocks Navalny Bot During Russian Election
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