according to shandong university researchers , the use of biocompatible materials prevents further damage to the tissue and minimizes the risk of infection and other side effects . scientists have a new method to collect and they designed fresh water storage from the air. johns hopkins university researchers used egyptian fins in the new device, which are coated with a special attractant. the new technological model collects more water continuously day and night than the previous models. researchers are trying to obtain the energy needed for this process from the heat dissipated in other systems such as buildings or vehicles. the second spacewalk of chinese astronauts took place. according to china news, these three astronauts inspected the station's equipment and wires for about 6 hours they did with the help of space station games and robotics, astronauts and researchers on the ground installed devices to protect the station from space debris. according to the china manned space center , these three people are one-third of their space journey. have finished and are going to perform many