محققان دانشگاه سیچوآن چین برای ردیابی ذرات پلاستیکی بسیار ریز موجود در آب، راه‌حل نوآورانه‌ای ارائه کرده‌اند. یک ربات ماهی کوچک که می‌تواند به صورت خودکار شنا کند، میکروپلاستیک‌های شناور در سطح آب به آن می‌چسبند و همچنین در صورت آسیب دیدن می‌تواند خودش را ترمیم کند.
ربات ماهی توسعه داده شده توسط آن‌ها تنها 13 میلی‌متر طول دارد و به لطف سیستم لیزری موجود در دمش، با سرعت 30 میلی‌متر در ثانیه شنا می‌کند و به اطراف می‌چرخد.
محققان دانشگاه سیچوآن چین برای ردیابی ذرات پلاستیکی بسیار ریز موجود در آب، راه‌حل نوآورانه‌ای ارائه کرده‌اند. یک ربات ماهی کوچک که می‌تواند به صورت خودکار شنا کند، میکروپلاستیک‌های شناور در سطح آب به آن می‌چسبند و همچنین در صورت آسیب دیدن می‌تواند خودش را ترمیم کند.
ربات ماهی توسعه داده شده توسط آن‌ها تنها 13 میلی‌متر طول دارد و به لطف سیستم لیزری موجود در دمش، با سرعت 30 میلی‌متر در ثانیه شنا می‌کند و به اطراف می‌چرخد.
Telegram does offer end-to-end encrypted communications through Secret Chats, but this is not the default setting. Standard conversations use the MTProto method, enabling server-client encryption but with them stored on the server for ease-of-access. This makes using Telegram across multiple devices simple, but also means that the regular Telegram chats you’re having with folks are not as secure as you may believe. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. Stocks dropped on Friday afternoon, as gains made earlier in the day on hopes for diplomatic progress between Russia and Ukraine turned to losses. Technology stocks were hit particularly hard by higher bond yields. Ukrainian forces successfully attacked Russian vehicles in the capital city of Kyiv thanks to a public tip made through the encrypted messaging app Telegram, Ukraine's top law-enforcement agency said on Tuesday. 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.
from tr
