The story of the phone. Volkov in, Volkova N.

“Forgot a phone at home” today sounds like a sentence. Our whole life is concentrated in smartphones. Call a taxi, pay in the store, listen to your favorite music, read the news and, of course, agree on a meeting - all this can be done by pressing a pair of buttons. It's hard to believe, but such a phone was not always. Some twenty years ago on a mobile phone you could only talk and exchange short messages. Fifty years ago, the home (stationary) phone was the only means of communication, but it was not in every apartment, and he had to run to the taxophone in the neighboring quarter. And there was a time when people lived without a phone at all. How then did they communicate with each other? And who came up with the devices that transmit the sound?

In this book, the history of communications from ancient Rome to the present day. She poses many interesting questions for readers, thanks to which one can observe how science and technology developed in the dialogue between scientists and eras. What are the inventions of the past underly the basis of modern technology? How did the telegraph “dots” and “dash” helped? Why a carbon powder? What has changed thanks to the radio? And how did you manage to move from analogue to the number? And from the “phone history” you will learn about the secret semaphor of Napoleon, radio on board the Titanic, a cable on the bottom of the ocean and hacking a telephone network using a whistle.

The publication is accompanied by expressive and bright illustrations by the artist Lisa Kazinskaya. Here you will find and detailed devices and mechanisms, and portraits of inventors, and funny genre scenes.

for primary and secondary school age.