دانشمندان مدت‌هاست می‌دانند که به نظر می‌رسد نور گاهی قبل از ورود به یک ماده، از آن خارج می‌شود، اثری که به عنوان توهم ناشی از تغییر شکل امواج توسط ماده نادیده گرفته می‌شد. اکنون، پژوهشگران دانشگاه تورنتو از طریق آزمایش‌های نوآورانه کوانتومی می‌گویند که ثابت کرده‌اند "زمان منفی" دیگر فقط یک ایده ...
دانشمندان مدت‌هاست می‌دانند که به نظر می‌رسد نور گاهی قبل از ورود به یک ماده، از آن خارج می‌شود، اثری که به عنوان توهم ناشی از تغییر شکل امواج توسط ماده نادیده گرفته می‌شد. اکنون، پژوهشگران دانشگاه تورنتو از طریق آزمایش‌های نوآورانه کوانتومی می‌گویند که ثابت کرده‌اند "زمان منفی" دیگر فقط یک ایده ...
The last couple days have exemplified that uncertainty. On Thursday, news emerged that talks in Turkey between the Russia and Ukraine yielded no positive result. But on Friday, Reuters reported that Russian President Vladimir Putin said there had been some “positive shifts” in talks between the two sides. 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. Anastasia Vlasova/Getty Images 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. Under the Sebi Act, the regulator has the power to carry out search and seizure of books, registers, documents including electronics and digital devices from any person associated with the securities market.
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