Help Ukrainian army
The article is written by Pavlo Chaika, the chief editor of the "Piznavayka" magazine. Since its founding in 2013, Pavlo Chaika has been dedicated to popularizing science in the world. The main goal, both of the magazine and of this article, is to explain complex scientific topics in a simple and accessible language.
Anyone who wants to help the heroic Ukrainian army in this difficult time, follow the link or click on the banner.
