Вопрос № 284565 - Английский язык

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Radio was invented in Russia. The world's first receiver was constructed in 1895 by the great Russian scientist Alexander Popov. There were no transmitters then, therefore his receiver could only pick up signals produced by lightning discharges during a thunderstorm. A. Popov demonstrated a device called a "storm indicator" at a meeting of the Russian Physico-Chemical Society in St. Petersburg on May 7, 1895. This day is marked now as Radio Day. Soon Alexander Popov found a way of transmitting Morse code signals. In 1897 he sent the world's first wireless telegram over a distance of 600 m and four years later the range of transmission was increased to 150 km. Nowadays radio communication has no limits.
Варианты ответов
  • Nowadays radio communication has limits.
  • Popov’s receiver could pick up signals produced by lightning discharges during a thunderstorm.
  • Radio was invented in America.
  • A. Popov found a way of trasmitting signals of the teleprinter.
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Вопрос задал(а): Анонимный пользователь, 10 Ноябрь 2020 в 00:49
На вопрос ответил(а): Анастасия Степанова, 10 Ноябрь 2020 в 00:49