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Explosion of a nuclear bomb, depending onof nominal capacity, causes catastrophic destruction within a radius of one to ten kilometers from the site of initiation. In the epicenter of the explosion, the energies of monstrous quantities are raging: the temperature rises to several hundred thousand degrees, the pressure increases in an abrupt way from five to eight times, then sharply becomes lower than the atmospheric one. To survive in the epicenter of a nuclear explosion is impossible even in a fortified shelter: a surge of seismic activity leads to the instant collapse of any existing cavities located two kilometers from the surface of the earth. In the secondary lesion zone, it is possible to survive. At a distance of more than ten kilometers from the site of the explosion, the temperature increase is insignificant, but there are other damaging factors that change with time. When a nuclear strike alert is triggered, you should find a shelter as soon as possible. In the ideal case, they will become a subway or a specialized bomb shelter. Less secure shelters include basements and concrete fortifications located below ground level. At the time of the explosion in the sky, there is a bright flash that the human eye can still see. In a few seconds the brightness of light grows to the light of monstrous power.

Light radiation

If there are no suitable fortifications around,As soon as possible, hide behind a ledge of opaque material with high density. Excellent concrete fences, large stones, walls of buildings will go. If there is nothing like this, it should be at least 1-1.5 meters below ground level in any way. Intensive light radiation lasts from 30 to 80 seconds, heating objects to several hundred degrees, so a person's stay in the open space within a radius of 30 kilometers from the explosion is deadly. The effect of light radiation causes widespread fires and fusions, partially destroys the building.

Penetrating radiation

40 seconds after the initiationActs hard ionizing radiation, which can almost immediately cause a lethal outcome. The action of radiation falls on the stage of residual luminescence of a nuclear bomb. Stone walls, concrete ceilings and the thickness of the ground can protect from the action of penetrating radiation, but it is necessary to wait for the completion of the active phase of the explosion.

Shock Wave

One minute after the initiation of nuclearcharge supersonic shock wave goes beyond the epicenter and loses speed as it spreads. A reliable shelter from the shock wave remains deep cellars and wells, in their absence you can hide in the folds of the terrain. In the open area, the wave can lift up to two meters of soil into the air.

Radiation pollution

After the explosion, it is necessary to leave as soon as possiblezone of defeat. After 6-10 hours the primary precipitation of the suspended particles of the decomposition products occurs on the surface. Leaving should be against the wind in the event that it is directed to the epicenter of the explosion or to one side. If the wind blows from the epicenter, you should leave the affected area perpendicular to the direction of the air flow.