Можно ли в плоскости прорезать тонкое отверстие, не разбивающее ее на части, через которое можно продеть каркас: a) куба; b) тетраэдра? (Ребра каркаса считаются сколь угодно тонкими)
Можно ли в плоскости прорезать тонкое отверстие, не разбивающее ее на части, через которое можно продеть каркас: a) куба; b) тетраэдра? (Ребра каркаса считаются сколь угодно тонкими)
Also in the latest update is the ability for users to create a unique @username from the Settings page, providing others with an easy way to contact them via Search or their t.me/username link without sharing their phone number. "This time we received the coordinates of enemy vehicles marked 'V' in Kyiv region," it added. "There are a lot of things that Telegram could have been doing this whole time. And they know exactly what they are and they've chosen not to do them. That's why I don't trust them," she said. Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts. In 2014, Pavel Durov fled the country after allies of the Kremlin took control of the social networking site most know just as VK. Russia's intelligence agency had asked Durov to turn over the data of anti-Kremlin protesters. Durov refused to do so.
from hk
