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  • 7 Jan 2026
    Ehtibar N. Dzhafarov

    Contextuality in Random Variables: A Systematic Introduction

    Subject of the book The book is about systems of random variables, that is, sets of random vari-ables ordered in two ways: by their contents (the questions the variables answer) and by their contexts (conditions under which they are recorded). Such a sys-tem can be contextual or noncontextual. The meaning of contextuality in this book […]

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  • 23 Dec 2025
    Ana María Cetto, Luis de la Peña

    Quantum Mechanics at 100: A Triumph That Still Leaves Fundamental Questions in the Air

    As the International Year of Quantum Science and Technology 2025 marks one hundred years of modern, quantum mechanics this reflection invites readers to look beyond the theory’s extraordinary successes and to consider how we understand, teach, and carry it forward into its next century. When the United Nations proclaimed 2025 the International Year of Quantum […]

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  • 22 Dec 2025
    Christopher W. Churchill

    A modern scientific revolution: quasars and how they changed our science of the cosmos

    Imagine a time when our best images of the universe were black and white photos. This is the year 1960. Forget about galaxy evolution theory, we didn’t even have mature ideas on how they came to exist. We had no idea how the universe evolved, nor how old it might be. As championed by Sir […]

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  • 2 Oct 2025
    Kunihiko Kaneko

    Universal Biology

    What is life, or are there universal properties of living systems? More than 80 years ago, Schrödinger published his seminal monograph What is Life? in which he predicted the nature of DNA as an information-carrying molecule and discussed the significance of the non-equilibrium nature of biological systems. This book was a physicist’s attempt to elucidate […]

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  • 18 Sep 2025
    Fabien Paillusson

    Statistical Mechanics as the Rosetta Stone of Physics?

    The Rosetta Stone is a famous stone artefact that was found in Rosetta in 1799 with inscriptions written on it in three different languages: Ancient Egyptian, Demotic and Ancient Greek. Given that Ancient Greek was well understood at the time, it helped deciphering the two other languages, most particularly Ancient Egyptian. Why do I tell […]

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  • 8 Jul 2025
    David Alan Clarke

    Introducing A first course in Magnetohydrodynamics

    Summary: A First Course in Magnetohydrodynamics offers a much-needed resource for undergraduate physics education.  Despite the fact that magneto-hydrodynamics (MHD) can be used to describe more than 99.99% of the visible universe, it is usually relegated to graduate programmes in plasma physics and almost never taught at the undergraduate level.  In this blog post, I […]

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  • 20 Jun 2025
    Veit Elser

    A radically different method for solving problems

    The animation running below shows a new kind of algorithm solving a nonogram puzzle. The task is to arrange purple squares in a grid according to some constraints listed on the sides. For example, the “3 5 5” next to the top row means the purple squares should form separated blocks of size 3, 5, and 5 […]

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  • 23 May 2025
    Hiroaki Takagi, Chikara Furusawa, Satoshi Sawai, Kunihiko Kaneko

    Mathematical frameworks to understand the logic of life

    The complexity of living systems is among the most fascinating subjects in science. From cellular responses, adaptation and rhythms, synchronized firing of neurons to the emergence of multicellular patterns and the evolution of life itself, biology is full of dynamical, structured, and often unpredictable behavior. Capturing these phenomena in a quantitative framework is one of […]

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