سورپرایزهای ریاضی در مکانیک کوانتومی: در ستایش دقت ریاضی - بهراد تقوی
از دید بسیاری از فیزیکدان‌ها، دقت ریاضی (mathematical rigor) در اکثر اوقات برای جامعه فیزیک غیر‌ضروری بوده و حتی با کند کردن سرعت پیشرفت فیزیک می‌تواند برای آن مضر نیز باشد. شاید بتوان دلیل فاینمن را برای بیان این نظر درک کرد؛ برای لحظه‌ای تصور کنید که ...
سورپرایزهای ریاضی در مکانیک کوانتومی: در ستایش دقت ریاضی - بهراد تقوی
از دید بسیاری از فیزیکدان‌ها، دقت ریاضی (mathematical rigor) در اکثر اوقات برای جامعه فیزیک غیر‌ضروری بوده و حتی با کند کردن سرعت پیشرفت فیزیک می‌تواند برای آن مضر نیز باشد. شاید بتوان دلیل فاینمن را برای بیان این نظر درک کرد؛ برای لحظه‌ای تصور کنید که ...
The S&P 500 fell 1.3% to 4,204.36, and the Dow Jones Industrial Average was down 0.7% to 32,943.33. The Dow posted a fifth straight weekly loss — its longest losing streak since 2019. The Nasdaq Composite tumbled 2.2% to 12,843.81. Though all three indexes opened in the green, stocks took a turn after a new report showed U.S. consumer sentiment deteriorated more than expected in early March as consumers' inflation expectations soared to the highest since 1981. Oh no. There’s a certain degree of myth-making around what exactly went on, so take everything that follows lightly. Telegram was originally launched as a side project by the Durov brothers, with Nikolai handling the coding and Pavel as CEO, while both were at VK. "This time we received the coordinates of enemy vehicles marked 'V' in Kyiv region," it added. 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. Emerson Brooking, a disinformation expert at the Atlantic Council's Digital Forensic Research Lab, said: "Back in the Wild West period of content moderation, like 2014 or 2015, maybe they could have gotten away with it, but it stands in marked contrast with how other companies run themselves today."
from es
