The danger of radioactive contamination in karst caves is associated primarily with natural, radioactive inert gas, radon. This colorless, odorless gas is 7.5 times heavier than air and…
cave
Underground caves and labyrinths, their dangers, features of movement and behavior, actions in an emergency or extreme situation.
From the point of view of the origin of the cave is divided into natural karst, lava, and artificial mines, mines, mines, quarries, salt mines. The caves are…
Long-term shelters and shelters, caves, lightweight structures for long-term shelters, construction of shelters from reeds, a house made of turf.
If you have come to the conclusion that a rescue search is not being conducted and that it is not practical to search for a path to salvation…