انجمن علمی فیزیک دانشگاه صنعتی خواجه‌نصیرالدین طوسی تقدیم می‌کند:
🔸«چند دقیقه با فیزیک‌دان‌ها» به مناسبت زادروز فیزیکدان‌های برجسته‌ی تاریخ علم فیزیک
🔹شماره سوم: ارنست رادرفورد
🔻پدر علم فیزیک هسته‌ای 🔻فیزیک‌دان برجسته هسته‌ای و برنده نوبل اهل نیوزیلند 🔻مطرح‌کننده نظریه بار اتمی در هسته مشهور به مدل اتمی رادرفورد 🔻کاشف هسته‌‌ی اتم 🔻کاشف تابش آلفا و بتا 🔻کاشف ذره‌ی پروتون
انجمن علمی فیزیک دانشگاه صنعتی خواجه‌نصیرالدین طوسی تقدیم می‌کند:
🔸«چند دقیقه با فیزیک‌دان‌ها» به مناسبت زادروز فیزیکدان‌های برجسته‌ی تاریخ علم فیزیک
🔹شماره سوم: ارنست رادرفورد
🔻پدر علم فیزیک هسته‌ای 🔻فیزیک‌دان برجسته هسته‌ای و برنده نوبل اهل نیوزیلند 🔻مطرح‌کننده نظریه بار اتمی در هسته مشهور به مدل اتمی رادرفورد 🔻کاشف هسته‌‌ی اتم 🔻کاشف تابش آلفا و بتا 🔻کاشف ذره‌ی پروتون
As the war in Ukraine rages, the messaging app Telegram has emerged as the go-to place for unfiltered live war updates for both Ukrainian refugees and increasingly isolated Russians alike. Groups are also not fully encrypted, end-to-end. This includes private groups. Private groups cannot be seen by other Telegram users, but Telegram itself can see the groups and all of the communications that you have in them. All of the same risks and warnings about channels can be applied to groups. This ability to mix the public and the private, as well as the ability to use bots to engage with users has proved to be problematic. In early 2021, a database selling phone numbers pulled from Facebook was selling numbers for $20 per lookup. Similarly, security researchers found a network of deepfake bots on the platform that were generating images of people submitted by users to create non-consensual imagery, some of which involved children. And indeed, volatility has been a hallmark of the market environment so far in 2022, with the S&P 500 still down more than 10% for the year-to-date after first sliding into a correction last month. The CBOE Volatility Index, or VIX, has held at a lofty level of more than 30. Since its launch in 2013, Telegram has grown from a simple messaging app to a broadcast network. Its user base isn’t as vast as WhatsApp’s, and its broadcast platform is a fraction the size of Twitter, but it’s nonetheless showing its use. While Telegram has been embroiled in controversy for much of its life, it has become a vital source of communication during the invasion of Ukraine. But, if all of this is new to you, let us explain, dear friends, what on Earth a Telegram is meant to be, and why you should, or should not, need to care.
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