Name a bunch of famous physics paradoxes

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I find them very interesting and I was wondering if anyone can name a bunch of famous physics paradoxes.
 
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Quantum entanglement for one.
 


I'm not sure that there are any paradoxes, per se.

Quantum entanglement is a potential aspect of quantum physics, but it is not a paradox.
 


Do you mean paradoxes as in "surprising but correct predictions of a theory" (like time dilation), or paradoxes as in "logical inconsistencies caused by incorrect calculations that look correct to a novice" (like the twin paradox)?
 
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Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...

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