Vol. 36 No. 2 (2025)

KVANT 2, June 2025 brings together the many facets of physics—from the limits of relativity theory to Mars research and green technology. A historical look at the idea of faster-than-light motion challenges common interpretations of Einstein’s theory. At the same time, the issue explores whether quantum-mechanical concepts offer genuine insight into social phenomena or merely serve as metaphors.

The magazine features articles on electrolysis cells for large-scale hydrogen production, radar physics for hypersonic missiles, and 3D scanning of a Mars meteorite. News items range from nuclear physics at CERN to black-hole analogues in the laboratory—and even experiments involving onions and tears.

In addition, the issue includes reflections on time systems, the inaccuracies of the calendar, and the introduction of atomic time. With award presentations, the annual meeting, book reviews, and an obituary for Jens Højgaard Jensen, the issue is both scientifically deep and broad in perspective.

An issue that captures the role of physics in society, science, and culture.