In hostages at a gadget. The most popular means of communication was 50 years old

To Mobile phone — 50 years. It so strongly entered our life what to remain without it it is already impossible for the person. Left it at home — and as if lost communication with the whole world. And if from it throws into cold sweat and hands shiver, becomes at all to laughter. In April, 1973 the modest inventor Martin Cooper presented to the world the child — the portable telephone set. The miracle of equipment weighed 849 grams and there were 25 centimeters in length. This invention served as a powerful impulse for the best minds of mankind: from year to year more and more perfect models were created. Over time they lost weight and...