the exhibition, the use of means of transportation is still the first suggestion of the tehran metro operating companyd they increased the speed of the trains by two minutes at the peak of people's use, as well as the trains they should also have an empty space that can be used during busy times. imam khomeini, may god have mercy on him, to the book fair, the train of the tehran book fair arrived at the station , and the passengers who came from far and near and each of them pursues the same goal, which is a step towards the promotion of culture . radio news agency scientists are building millipede-inspired robots that can navigate difficult paths. georgia institute of technology is working on finding robots with more legs. additional control technology can move nimbly on uneven surfaces , so if one leg fails the rest of the robot's legs will continue in their direction without paying attention to it. presentation of 450 technological products in the 12th international exhibition of innovation and technology of iran 2023. the exhibition will be held until may 22 in pardis technology park. sensors humi