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 ...
Markets continued to grapple with the economic and corporate earnings implications relating to the Russia-Ukraine conflict. “We have a ton of uncertainty right now,” said Stephanie Link, chief investment strategist and portfolio manager at Hightower Advisors. “We’re dealing with a war, we’re dealing with inflation. We don’t know what it means to earnings.” The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips. "This time we received the coordinates of enemy vehicles marked 'V' in Kyiv region," it added. 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. Given the pro-privacy stance of the platform, it’s taken as a given that it’ll be used for a number of reasons, not all of them good. And Telegram has been attached to a fair few scandals related to terrorism, sexual exploitation and crime. Back in 2015, Vox described Telegram as “ISIS’ app of choice,” saying that the platform’s real use is the ability to use channels to distribute material to large groups at once. Telegram has acted to remove public channels affiliated with terrorism, but Pavel Durov reiterated that he had no business snooping on private conversations.
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