A collection of 44 articles from the Delta magazine intended for a broad spectrum of readers. The authors describe, among others, the law of large numbers, the Banach-Tarski paradox, the four-colour theorem, the Gödel’s theorem, and such fundamental

A collection of essays popularizing modern mathematics in a simple and accessible way for non-specialists. The author has presented a number of selected, relevant mathematical problems and the results of the research conducted on the topic. Reading

The texts from the Delta journal collected in one volume provide an excellent overview of the most important issues of modern physics. Both classical issues as well as the latest achievements and theories are described in accessible form