What Are the Key Physics Experiments Shaping Our Understanding of the Universe?

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Discussion Overview

The discussion revolves around identifying key physics experiments that have significantly contributed to our understanding of various concepts in physics, including electromagnetic radiation, atomic structure, and sound. Participants seek comprehensive lists of these experiments and their historical context.

Discussion Character

  • Exploratory
  • Technical explanation
  • Historical

Main Points Raised

  • One participant requests a detailed list of major physics experiments and expresses a desire to summarize each one after further research.
  • Another participant shares links to Wikipedia lists of physicists and plasma physicists as potential resources for further exploration.
  • A third participant lists additional experiments and contributors, including concepts like moment of inertia, electric field, and free energy, indicating a broader scope of significant historical contributions.
  • A later reply suggests the Stern-Gerlach experiment as a notable example that illustrates fundamental quantum mechanical principles, specifically regarding particle deflection and interactions.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on a definitive list of key experiments, and multiple viewpoints and resources are presented without resolution.

Contextual Notes

The discussion includes various historical figures and experiments, but lacks a unified framework or criteria for what constitutes a "key" experiment, leading to potential ambiguity in the selection process.

lkindr
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* I'm looking for a list of the major physics experiments on the internet that will show how the present understanding of electromagnetic radiation, sound, atomic and molecular structure etc came about.
* So far I've only found the following lists. Once I find a more complete list of the people who did the major experiments, then I hope to look through each one in more detail and try to get a summary of each. I'd appreciate if anyone can link me to more thorough lists - and sites with good summaries of the experiments would be nice too.
http://en.wikipedia.org/wiki/List_of_experiments"
1. mechanics: Al-Khazini
2. rainbow: Kamāl al-Dīn al-Fārisī
3. motion of rolling balls: Galileo Galilei
4. torsion: Henry Cavendish
5. double-slit light diffraction: Thomas Young
6. electricity & compass: Hans Christian Ørsted
7. heat: James Prescott Joule
8. sound: Christian Doppler
9. pendulum: Léon Foucault
10. magnet & voltage: Edwin Hall
11. aether: Michelson-Morley
12. radio waves: Guglielmo Marconi
13. cathode rays: J. J. Thomson
14. inertia & gravity: Roland von Eötvös
15. electric charge of oil drops: Robert Millikan
16. superconductivity: Heike Kamerlingh Onnes
17. atomic nucleus: Ernest Rutherford
18. gravitational lensing: Arthur Eddington
19. particle spin: Otto Stern and Walther Gerlach
20. atomic fission: Enrico Fermi
21. nuclear disintegration: John Cockcroft and Ernest Walton
22. nuclear reactor: Enrico Fermi
23. atomic bomb: The Manhattan Project
24. transistor: John Bardeen and Walter Brattain
25. neutrino: Clyde L. Cowan and Frederick Reines
26. time dilation: The Scout rocket
27. quantum entanglement: Alain Aspect
28. Bose-Einstein condensate: Eric Cornell and Carl Wieman

http://physics-animations.com/Physics/English/top_ref.htm"
30. Double-slit electron diffraction: Claus Jönsson
31. falling objects: Galileo Galilei
32. prism light spectrum: Isaac Newton
33. measurement of Earth's circumference: Eratosthenes

http://www.slideshare.net/kmitaksov/atomic-experiments-regular-fall07"
 
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* I found these in the Library section of this forum.
34. moment of inertia: Isaac Newton, Leonhard Euler, Jakob Steiner
35. pressure: Daniel Bernoulli
36. electric field: Michael Faraday, James Maxwell
37. momentum: Isaac Newton
38. Newton's second law: Isaac Newton
39. heat: Sadi Carnot, James Joule
40. impedance: Oliver Heaviside, Arthur Kennelly
41. voltage: Alessandro Volta
42. flux: Carl Friedrich Gauss
43. cooper pair: Leon Cooper
44. Feynman propagator: Richard Feynman
45. virtual particles: Richard Feynman, Gian-Carlo Wick, Freeman Dyson
46. mean value theorem: Parameshvara, Michel Rolle, Augustin Cauchy
47. free energy: St Albert of Cologne, Germain Hess, James Joule, Rudolf Clausius, Julius Thomsen, Marcellin Berthelot, Willard Gibbs, Hermann von Helmholtz
 
You might want to check out the Stern-Gerlach experiment (http://en.wikipedia.org/wiki/Stern–Gerlach_experiment). It illustrates a lot of the basic quantum mechanical principles, in particular the deflection of particles and hence, physical interactions between particles.
 

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