Author: rva

A simple and accessible way to determine angular measurements in space. Stretching out the hand, it is necessary to draw the necessary configuration with the hand and fingers as

Methods of protection against radiation. Based on the contents of the first part of the article “Radiation. Basic concepts. Part 1 “, we note the basic principles of ‘Radiation

In this article we are not going to dive into deep details of the physical fundamentals. Our purpose is to understand the essence of the radioactive impacts on humans;

There are several types of shelters, their definition depends on climatic conditions and the availability of materials at hand. If it is not possible to find any materials suitable

One of the important elements of being in extreme situations is certainly the ability to find shelter. They can be both temporary (if you were taken aback by bad

There are times when I did not keep track of the battery in my own car and got into an unusual situation. Let’s consider the most difficult case: a

A warning of evacuation or voluntary evacuation means that it is time to prepare to leave your home and area. Gather your family, pets, basic things and important documents

A simple way to filter out dirty water from the plastic bottle and a piece of cloth. It is necessary to take two containers. In the simplest version, you

Since ancient times, the world’s population, most of them living in the northern hemisphere, have learned to navigate the area with the help of a number of stars in

It is very important being hike at the end of the daylight hours to determine how much is still left of daylight. Without special devices, this is easy to