The collection contains stories about technology surrounding a person, about technology from various fields of science - astronomy, geology and others. Who doesn't know what technology is? Well, of course, everyone knows! A car, a tram and a trolleybus, an airplane, a train and a ship, an automatic machine selling sparkling water, a construction crane and a welding torch, a telephone, a radio and a TV, machine tools, machines and machines in the workshops of factories and factories and the buildings of factories and factories themselves, cash registers and scales in stores, traffic lights on the streets - all these are different items of equipment.