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✨ دستاوردهای علمی جدید از کاوش بر یک قمر خاص 🪐 آیو، قمر آتشفشانی مشتری، فاقد اقیانوس ماگمایی است.
یافته‌های جدید نشان می‌دهند که آیو برخلاف آن‌چه که تا پیش از این تصور می‌شد، احتمالا دارای اقیانوس ماگمایی زیرسطحی نیست، بلکه ساختار داخلی آن، بسیار مشابه با زمین، سخت و تا حدی مذاب است. آیو، نزدیک‌ترین قمر از چهار قمر بزرگ گالیله‌ای مشتری، پوشیده از صدها آتشفشان است که برخی از آن‌ها فواره‌هایی از گدازه را تا ارتفاع ده‌ها مایل پرتاب می‌کنند. اما چه نوع فرآیند درونی می‌تواند باعث این فعالیت شدید ماگمایی شود؟
✨ دستاوردهای علمی جدید از کاوش بر یک قمر خاص 🪐 آیو، قمر آتشفشانی مشتری، فاقد اقیانوس ماگمایی است.
یافته‌های جدید نشان می‌دهند که آیو برخلاف آن‌چه که تا پیش از این تصور می‌شد، احتمالا دارای اقیانوس ماگمایی زیرسطحی نیست، بلکه ساختار داخلی آن، بسیار مشابه با زمین، سخت و تا حدی مذاب است. آیو، نزدیک‌ترین قمر از چهار قمر بزرگ گالیله‌ای مشتری، پوشیده از صدها آتشفشان است که برخی از آن‌ها فواره‌هایی از گدازه را تا ارتفاع ده‌ها مایل پرتاب می‌کنند. اما چه نوع فرآیند درونی می‌تواند باعث این فعالیت شدید ماگمایی شود؟
The next bit isn’t clear, but Durov reportedly claimed that his resignation, dated March 21st, was an April Fools’ prank. TechCrunch implies that it was a matter of principle, but it’s hard to be clear on the wheres, whos and whys. Similarly, on April 17th, the Moscow Times quoted Durov as saying that he quit the company after being pressured to reveal account details about Ukrainians protesting the then-president Viktor Yanukovych. In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. On December 23rd, 2020, Pavel Durov posted to his channel that the company would need to start generating revenue. In early 2021, he added that any advertising on the platform would not use user data for targeting, and that it would be focused on “large one-to-many channels.” He pledged that ads would be “non-intrusive” and that most users would simply not notice any change. What distinguishes the app from competitors is its use of what's known as channels: Public or private feeds of photos and videos that can be set up by one person or an organization. The channels have become popular with on-the-ground journalists, aid workers and Ukrainian President Volodymyr Zelenskyy, who broadcasts on a Telegram channel. The channels can be followed by an unlimited number of people. Unlike Facebook, Twitter and other popular social networks, there is no advertising on Telegram and the flow of information is not driven by an algorithm. 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.
from ua
