آشکارسازی الگوهای پنهان اسپینی: چگونه لیزرها قفل جهان کوانتومی را باز می‌کنند؟
مدت‌هاست که دانشمندان در تلاش بودند تا راه‌هایی برای مطالعه نوع خاصی از امواج نوری به نام امواج پلاسمونیک ابداع کنند؛ امواجی از نوسانات الکترونی که وقتی نور با فلز برهمکنش می‌کند، در امتداد سطح فلزات حرکت می‌کنند. امواج پلاسمونیک می‌توانند نور را در فضاهای کوچک متمرکز کنند و پلی بین نور و جهان نانو…
آشکارسازی الگوهای پنهان اسپینی: چگونه لیزرها قفل جهان کوانتومی را باز می‌کنند؟
مدت‌هاست که دانشمندان در تلاش بودند تا راه‌هایی برای مطالعه نوع خاصی از امواج نوری به نام امواج پلاسمونیک ابداع کنند؛ امواجی از نوسانات الکترونی که وقتی نور با فلز برهمکنش می‌کند، در امتداد سطح فلزات حرکت می‌کنند. امواج پلاسمونیک می‌توانند نور را در فضاهای کوچک متمرکز کنند و پلی بین نور و جهان نانو…
The regulator said it had received information that messages containing stock tips and other investment advice with respect to selected listed companies are being widely circulated through websites and social media platforms such as Telegram, Facebook, WhatsApp and Instagram. The fake Zelenskiy account reached 20,000 followers on Telegram before it was shut down, a remedial action that experts say is all too rare. On February 27th, Durov posted that Channels were becoming a source of unverified information and that the company lacks the ability to check on their veracity. He urged users to be mistrustful of the things shared on Channels, and initially threatened to block the feature in the countries involved for the length of the war, saying that he didn’t want Telegram to be used to aggravate conflict or incite ethnic hatred. He did, however, walk back this plan when it became clear that they had also become a vital communications tool for Ukrainian officials and citizens to help coordinate their resistance and evacuations. Again, in contrast to Facebook, Google and Twitter, Telegram's founder Pavel Durov runs his company in relative secrecy from Dubai. Telegram has become more interventionist over time, and has steadily increased its efforts to shut down these accounts. But this has also meant that the company has also engaged with lawmakers more generally, although it maintains that it doesn’t do so willingly. For instance, in September 2021, Telegram reportedly blocked a chat bot in support of (Putin critic) Alexei Navalny during Russia’s most recent parliamentary elections. Pavel Durov was quoted at the time saying that the company was obliged to follow a “legitimate” law of the land. He added that as Apple and Google both follow the law, to violate it would give both platforms a reason to boot the messenger from its stores.
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