Since early childhood everyone knows that substance can exist in three states: solid, liquid and gas. A perfect example of it is ordinary water. We can observe it in all the three states in our daily life (especially in a kitchen). However, there exists another state
which is called plasma... The Novosibirsk Institute of Nuclear Physics is one of the world's leaders in studying plasma. They have some very interesting setups, so-called "plasma traps". Let's see how they work and what they are needed for.