{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:52:41Z","timestamp":1760151161197,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2022,2,19]],"date-time":"2022-02-19T00:00:00Z","timestamp":1645228800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>In this work, we describe the crazy-clock phenomenon involving the state I (low iodide and iodine concentration) to state II (high iodide and iodine concentration with new iodine phase) transition after a Briggs\u2013Rauscher (BR) oscillatory process. While the BR crazy-clock phenomenon is known, this is the first time that crazy-clock behavior is linked and explained with the symmetry-breaking phenomenon, highlighting the entire process in a novel way. The presented phenomenon has been thoroughly investigated by running more than 60 experiments, and evaluated by using statistical cluster K-means analysis. The mixing rate, as well as the magnetic bar shape and dimensions, have a strong influence on the transition appearance. Although the transition for both mixing and no-mixing conditions are taking place completely randomly, by using statistical cluster analysis we obtain different numbers of clusters (showing the time-domains where the transition is more likely to occur). In the case of stirring, clusters are more compact and separated, revealed new hidden details regarding the chemical dynamics of nonlinear processes. The significance of the presented results is beyond oscillatory reaction kinetics since the described example belongs to the small class of chemical systems that shows intrinsic randomness in their response and it might be considered as a real example of a classical liquid random number generator.<\/jats:p>","DOI":"10.3390\/sym14020413","type":"journal-article","created":{"date-parts":[[2022,2,21]],"date-time":"2022-02-21T08:34:47Z","timestamp":1645432487000},"page":"413","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Spontaneous Symmetry Breaking: The Case of Crazy Clock and Beyond"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1299-7974","authenticated-orcid":false,"given":"Maja C.","family":"Pagnacco","sequence":"first","affiliation":[{"name":"Center for Catalysis and Chemical Engineering, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njego\u0161eva 12, 11000 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7138-6666","authenticated-orcid":false,"given":"Jelena P.","family":"Maksimovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12, 11158 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7455-5584","authenticated-orcid":false,"given":"Marko","family":"Dakovi\u0107","sequence":"additional","affiliation":[{"name":"Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12, 11158 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9061-7201","authenticated-orcid":false,"given":"Bojana","family":"Bokic","sequence":"additional","affiliation":[{"name":"Center for Photonics, Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6611-3794","authenticated-orcid":false,"given":"S\u00e9bastien R.","family":"Mouchet","sequence":"additional","affiliation":[{"name":"Department of Physics & Namur Institute of Structured Matter (NISM), University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium"},{"name":"School of Physics, University of Exeter, Stocker Road, Exeter EX4 4QL, UK"}]},{"given":"Thierry","family":"Verbiest","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Molecular Imaging and Photonics, KU Leuven, 3001 Heverlee, Belgium"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0805-4068","authenticated-orcid":false,"given":"Yves","family":"Caudano","sequence":"additional","affiliation":[{"name":"Department of Physics & Namur Institute of Structured Matter (NISM) & Namur Institute for Complex Systems (naXys), University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0203-7897","authenticated-orcid":false,"given":"Branko","family":"Kolaric","sequence":"additional","affiliation":[{"name":"Center for Photonics, Institute of Physics, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia"},{"name":"Micro- and Nanophotonic Materials Group, University of Mons, Place du Parc 20, 7000 Mons, Belgium"}]}],"member":"1968","published-online":{"date-parts":[[2022,2,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"14256","DOI":"10.1073\/pnas.93.25.14256","article-title":"The role of symmetry in fundamental physics","volume":"93","author":"Gross","year":"1996","journal-title":"Proc. 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