A good video on the history of quantum physics

Forestman
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This video (9.5 minutes) is reasonably good.

After flame spectrum and blackbody spectrum as background (with some nice graphics), it describes (5:30) Planck's solution to the ultra-violet catastrophe, and (7:30) Einstein's solution to the photoelectric effect. :smile:
 
I am glad that you liked it. :smile:
 
Thank you for that. Sixty Symbols also has some great videos. I like when people explain things to me like I'm 7. :smile:

 
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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
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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