From Newton's falling apple to the quantum foam of spacetime, from the interior of a proton to the edge of the observable universe — 69 chapters of physics, 39 biographies, and 100+ illustrations in one book.
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Universe in a Grain of Sand
A comprehensive 69-chapter physics encyclopedia — from mathematical foundations and classical mechanics through thermodynamics, electromagnetism, relativity, quantum physics, cosmology, and the frontiers of modern science. Featuring 39 physicist biographies and 100+ scientific illustrations.
The Bible as a Continuous Narrative of Human History
One hundred ancient texts — from Genesis to the Letter of Aristeas — retold as a single unbroken narrative. The Hebrew Bible, Apocrypha, Dead Sea Scrolls, pseudepigrapha, and the complete New Testament, each with footnotes, an editorial note, and a classical oil painting illustration.
A Love Story Written in Stone
The epic love story of Shah Jahan and Mumtaz Mahal that inspired the world's most beautiful monument. With 40+ original illustrations.
2025 Edition — 250+ Countries
The most comprehensive travel reference with essential facts, cultural insights, and practical information for every country on Earth.
and the Cabinet of Curiosities
When sixteen-year-old Lenna discovers a hidden room beneath her family's historic Boston brownstone, she uncovers a secret protected for generations.
The Ethiopian Manuscript
While her daughter discovers secrets beneath their Boston home, historian Rhea Carter travels to the Ethiopian highlands pursuing a manuscript that shouldn't exist.
The Art and Visions of Mo'Joe
109 stunning digital artworks exploring parallel dimensions where prehistoric creatures evolved into beings of pure light. AI-assisted art capturing translucent, bioluminescent creatures.
Spectral Gravity and the Critical Line
A mathematical framework connecting spectral theory, zeta functions, and the geometry of black holes in Anti-de Sitter space.
Global Engine Networking & Orchestration Messaging
The first universal semantic protocol for AI-to-AI communication. Using 2000 immutable tokens on the complex plane and post-quantum cryptography.
A Culinary Journey Across 273 Countries & Territories
Explore authentic recipes from every corner of the globe. From street food favorites to traditional family dishes, discover the flavors that define cultures worldwide.
Stability Constraints and the Structure of the Riemann Zeta Function
An exploration of stability constraints in the critical strip and their implications for understanding the distribution of prime numbers and the Riemann Hypothesis.
Radim Kaufmann is a Czech author, physicist, and technology entrepreneur whose work spans physics, historical fiction, travel guides, and speculative technology. His writing combines meticulous research with compelling narrative, whether explaining quantum mechanics in an accessible way, exploring the love story behind the Taj Mahal, or cataloging essential facts about every nation on Earth.
His latest work, Encyclopedia of Physics: Universe in a Grain of Sand, is a comprehensive 69-chapter journey through the entire landscape of physics — from Newton's falling apple to quantum gravity and the frontiers of modern science.
When not writing, Radim works on AI and web technologies, bringing the same attention to detail to both his creative and technical endeavors. He believes in stories that transcend time and technologies that empower people.