Čovek se vraća suncu

The book Man Returns to the Sun (Čovek se vraća suncu) by Prof. Dr. Živojin Ćulum (published in 1982) is a pioneering popular science work dedicated to solar energy and the need to transition to renewable energy sources. At a time when the global energy crises of the 1970s were shaking the world economy, Professor Ćulum offered a visionary perspective on the future of energy, highlighting the unsustainability of excessive fossil fuel consumption and the necessity of harmonizing human society with natural resources. In the book, the author details the history of humanity's relationship with the Sun—ranging from ancient civilizations and cults to modern scientific achievements. From a professional yet accessible standpoint, the book explains the principles of capturing and converting sunlight into thermal and electrical energy, the role of solar collectors, architectural adaptations (passive solar architecture), and the impact on environmental protection. The work is characterized by remarkable enthusiasm and environmental awareness, promoting the Sun as an inexhaustible, clean, and free source that guarantees humanity's long-term survival and progress.