Движущееся магнитное поле падающего магнита создает в меди электрические токи. Эти токи затем создают магнитные поля, полярность которых противоположна исходному полю. Таким образом, падающий магнит на короткое время превращает медную трубу в электромагнит, который затем отталкивает падающий магнит.
Движущееся магнитное поле падающего магнита создает в меди электрические токи. Эти токи затем создают магнитные поля, полярность которых противоположна исходному полю. Таким образом, падающий магнит на короткое время превращает медную трубу в электромагнит, который затем отталкивает падающий магнит.
On Telegram’s website, it says that Pavel Durov “supports Telegram financially and ideologically while Nikolai (Duvov)’s input is technological.” Currently, the Telegram team is based in Dubai, having moved around from Berlin, London and Singapore after departing Russia. Meanwhile, the company which owns Telegram is registered in the British Virgin Islands. WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. The Security Service of Ukraine said in a tweet that it was able to effectively target Russian convoys near Kyiv because of messages sent to an official Telegram bot account called "STOP Russian War." 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. Andrey, a Russian entrepreneur living in Brazil who, fearing retaliation, asked that NPR not use his last name, said Telegram has become one of the few places Russians can access independent news about the war.
from id
