Китай снова сделал это: представил самый быстрый в мире поезд CR450, который разгоняется до 450 км/ч. Для сравнения: нынешний маршрут Пекин – Шанхай (1318 км) преодолевается за 4 часа при 350 км/ч. А вот в Европе и США всё куда скромнее:
— Париж – Рим (1300 км) — 12 часов — Нью-Йорк – Лос-Анджелес (4000 км) — 67 часов
Пока Китай тестирует новую скорость, на Западе до сих пор спорят, стоит ли вкладываться в скоростные поезда.
Китай снова сделал это: представил самый быстрый в мире поезд CR450, который разгоняется до 450 км/ч. Для сравнения: нынешний маршрут Пекин – Шанхай (1318 км) преодолевается за 4 часа при 350 км/ч. А вот в Европе и США всё куда скромнее:
— Париж – Рим (1300 км) — 12 часов — Нью-Йорк – Лос-Анджелес (4000 км) — 67 часов
Пока Китай тестирует новую скорость, на Западе до сих пор спорят, стоит ли вкладываться в скоростные поезда.
For tech stocks, “the main thing is yields,” Essaye said. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. 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. The news also helped traders look past another report showing decades-high inflation and shake off some of the volatility from recent sessions. The Bureau of Labor Statistics' February Consumer Price Index (CPI) this week showed another surge in prices even before Russia escalated its attacks in Ukraine. The headline CPI — soaring 7.9% over last year — underscored the sticky inflationary pressures reverberating across the U.S. economy, with everything from groceries to rents and airline fares getting more expensive for everyday consumers. The gold standard of encryption, known as end-to-end encryption, where only the sender and person who receives the message are able to see it, is available on Telegram only when the Secret Chat function is enabled. Voice and video calls are also completely encrypted.
from vn
