На картинке — планиметр, прибор для измерения площадей. Один конец закрепляется на бумаге, другим обводят контур фигуры — и планиметр чисто механически вычисляет ее площадь.
Если думать про площадь в терминах… клеточек, которые занимает фигура или каких-то подобных, то это кажется довольно удивительным. Можно сказать, что это механическая реализация математики формулы Грина.
Это все тема несколько забытая, но какие-то тексты в интернете можно найти (1)(2)(3)(4)
На картинке — планиметр, прибор для измерения площадей. Один конец закрепляется на бумаге, другим обводят контур фигуры — и планиметр чисто механически вычисляет ее площадь.
Если думать про площадь в терминах… клеточек, которые занимает фигура или каких-то подобных, то это кажется довольно удивительным. Можно сказать, что это механическая реализация математики формулы Грина.
Это все тема несколько забытая, но какие-то тексты в интернете можно найти (1)(2)(3)(4)
Channels are not fully encrypted, end-to-end. All communications on a Telegram channel can be seen by anyone on the channel and are also visible to Telegram. Telegram may be asked by a government to hand over the communications from a channel. Telegram has a history of standing up to Russian government requests for data, but how comfortable you are relying on that history to predict future behavior is up to you. Because Telegram has this data, it may also be stolen by hackers or leaked by an internal employee. DFR Lab sent the image through Microsoft Azure's Face Verification program and found that it was "highly unlikely" that the person in the second photo was the same as the first woman. The fact-checker Logically AI also found the claim to be false. The woman, Olena Kurilo, was also captured in a video after the airstrike and shown to have the injuries. You may recall that, back when Facebook started changing WhatsApp’s terms of service, a number of news outlets reported on, and even recommended, switching to Telegram. Pavel Durov even said that users should delete WhatsApp “unless you are cool with all of your photos and messages becoming public one day.” But Telegram can’t be described as a more-secure version of WhatsApp. What distinguishes the app from competitors is its use of what's known as channels: Public or private feeds of photos and videos that can be set up by one person or an organization. The channels have become popular with on-the-ground journalists, aid workers and Ukrainian President Volodymyr Zelenskyy, who broadcasts on a Telegram channel. The channels can be followed by an unlimited number of people. Unlike Facebook, Twitter and other popular social networks, there is no advertising on Telegram and the flow of information is not driven by an algorithm. Asked about its stance on disinformation, Telegram spokesperson Remi Vaughn told AFP: "As noted by our CEO, the sheer volume of information being shared on channels makes it extremely difficult to verify, so it's important that users double-check what they read."
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