Российские ученые разработали усилитель для длин волн телекоммуникационного диапазона. Это небольшое — размером с ноутбук — устройство из стекла с добавками висмута способно усиливать сигнал с длинами волн от 1250 до 1500 нанометров — рекордной сейчас полосой пропускания (250 нанометров).
Российские ученые разработали усилитель для длин волн телекоммуникационного диапазона. Это небольшое — размером с ноутбук — устройство из стекла с добавками висмута способно усиливать сигнал с длинами волн от 1250 до 1500 нанометров — рекордной сейчас полосой пропускания (250 нанометров).
Some people used the platform to organize ahead of the storming of the U.S. Capitol in January 2021, and last month Senator Mark Warner sent a letter to Durov urging him to curb Russian information operations on Telegram. Under the Sebi Act, the regulator has the power to carry out search and seizure of books, registers, documents including electronics and digital devices from any person associated with the securities market. He said that since his platform does not have the capacity to check all channels, it may restrict some in Russia and Ukraine "for the duration of the conflict," but then reversed course hours later after many users complained that Telegram was an important source of information. The regulator said it has been undertaking several campaigns to educate the investors to be vigilant while taking investment decisions based on stock tips. In a statement, the regulator said the search and seizure operation was carried out against seven individuals and one corporate entity at multiple locations in Ahmedabad and Bhavnagar in Gujarat, Neemuch in Madhya Pradesh, Delhi, and Mumbai.
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