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Physics

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  • 8 Nov 2024
    Lorenzo Iorio

    Orbital motions as tools to test post-Newtonian and alternative models of gravity

    The General Theory of Relativity (GTR), enunciated just over a hundred years ago by Albert Einstein, remains to this day the best available description of gravitation, the feeblest out of the four fundamental interactions and, nonetheless, the one which shapes and governs the natural world at the grandest scales. Especially in recent decades, empirical evidence […]

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  • 23 Oct 2024
    Bernhard Mehlig

    Nobel prize in physics 2024

    This year’s Nobel prize in physics was awarded to John Hopfield and Geoffrey Hinton for `foundational discoveries and inventions that enable machine learning with artificial neural networks´(press release of the Royal Swedish Academy of Sciences, October 8, 2024).  Machine learning algorithms with artificial neural networks excel at image analysis, locating and classifying objects in digital […]

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  • 21 Mar 2024
    Jean René Roy

    Andromeda Galaxy at 100

    In 1924, American astronomer Edwin Powell Hubble (1889-1953) established the distance of the “Great Nebula” in Andromeda, clearly placing it outside the limits of our Milky Way. All of a sudden, the observable universe had just expanded by at least a million times. During beautiful evenings of late summer and autumn, you can observe in […]

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  • 8 Mar 2024
    David W, Snoke

    Myths and Open Questions of Quantum Mechanics

    After a hundred years, the field of quantum mechanics still has much to cause us to ponder. Nevertheless, science has progressed, and we know more than we used to know.  Among the things that have progressed are the modern understandings of past experiments in the context of quantum field theory.  Some of the things we […]

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  • 13 Feb 2024
    Irfan A. Siddiqi, Andrew N. Jordan

    Quantum measurement book blog

    What is the topic of the book? Measurement is one of the most fascinating and misunderstood aspects of quantum physics. It plays no role in classical physics, other than reducing ignorance about the underlying reality. In quantum physics measurement plays a fundamental role, and the choice of what kind of measurement you choose to do […]

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  • 22 Aug 2023
    Kostya Trachenko

    Theory of liquids, the hard problem

    I had a memorable library day trying to find an answer to a question that is simple to formulate: what is a theoretical value of energy and heat capacity of a classical liquid? I looked through all textbooks dedicated to liquids as well as statistical physics and condensed matter textbooks in the Rayleigh Library at […]

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  • 18 Aug 2023
  • 11 Apr 2023
    Emanuel Kulczycki

    Publication metrics don’t have to drive academia

    Rudolf Weigl, a Polish biologist who invented the first effective vaccine against typhus, called a practice of publishing many papers a ‘duck shit’: just as ducks leave a lot of traces while walking about in the yard, scientists hastily publish articles with partial results that are the product of undeveloped thought. This is one of the unfortunate outcomes of the evaluation game in today’s science, where researchers attempt to follow various evaluation rules and meet metrics-based expectations.

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