Telecommunication Vocabulary

Mots Croisés

Let's practice the vocabulary about the evolution of telecommunication of history?

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6º Ensino Fundamental

telecommunications

Âge recommandé: 11 ans

0 fois fait

Créé par

Paula de Barros Paranhos Costa

Brazil

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Mots Croisés Telecommunication VocabularyVersion en ligne Let's practice the vocabulary about the evolution of telecommunication of history? par Paula de Barros Paranhos Costa 1 It worked by transmitting electrical signals over a wire laid between stations. 2 It is defined as the science and technology of communication over a distance. 3 Persia and Syria are credited with establishing this first messaging system around the 5th century BCE due to the discovery of a great ability to find their way back. 4 Native Americasns used a mixture of wolf dung, saltpeter and sulfur to create it, that's easily seen from a distance. 5 It is a system for physically transporting postcards, letters, and parcels. 6 It had started being developed as early as the 1660s. Instead of transforming audio energy into electrical energy, these devices simply transmitted voice data mechanically. 7 The start occurs in Mesopotamia at least 9,500 years ago, and it involved the use of clay tokens, and was essential for the next telecommunication systems. 8 It was used to send detailed messages by using sounds, from village to village, much faster than a person could walk or ride a horse. 2 6 3 5 8 7 4

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