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
Overall, extreme levels of fear in the market seems to have morphed into something more resembling concern. For example, the Cboe Volatility Index fell from its 2022 peak of 36, which it hit Monday, to around 30 on Friday, a sign of easing tensions. Meanwhile, while the price of WTI crude oil slipped from Sunday’s multiyear high $130 of barrel to $109 a pop. Markets have been expecting heavy restrictions on Russian oil, some of which the U.S. has already imposed, and that would reduce the global supply and bring about even more burdensome inflation. 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. 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. Pavel Durov, a billionaire who embraces an all-black wardrobe and is often compared to the character Neo from "the Matrix," funds Telegram through his personal wealth and debt financing. And despite being one of the world's most popular tech companies, Telegram reportedly has only about 30 employees who defer to Durov for most major decisions about the platform. 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.
from jp