What is Your Favourite Experiment in Physics?

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Discussion Overview

The thread discusses participants' favorite experiments in physics, with some also mentioning experiments from chemistry and biology. The scope includes historical, conceptual, and experimental aspects of various scientific experiments.

Discussion Character

  • Exploratory
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant expresses a preference for Fizeau's experiment measuring the speed of light due to its simplicity.
  • Another participant recounts Galileo's attempt to measure the speed of light using lanterns, suggesting he likely concluded that light was too fast to measure accurately with that method.
  • A later reply mentions a preference for NMR experiments, indicating an interest in nuclear magnetic resonance.
  • One participant highlights the significance of Millikan's oil drop experiment.
  • Another participant favors Michelson's interferometer experiment, calling it one of the most important in physics.
  • One participant appreciates the simple pendulum experiment for its utility in measuring gravitational effects and mentions a personal experiment involving ultrasound to study the Doppler effect.

Areas of Agreement / Disagreement

Participants share a variety of favorite experiments, but there is no consensus on a single experiment being favored. Multiple competing views and preferences remain evident.

Contextual Notes

Some participants reference historical experiments without providing detailed conclusions or context, leaving certain assumptions and interpretations unresolved.

Who May Find This Useful

Readers interested in the history of physics experiments, experimental methods, or personal anecdotes related to scientific inquiry may find this discussion engaging.

Edgardo
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Hello all,

what are your favourite experiments in physics?
Mine is the experiment by Fizeau, in which the speed of light is measured.
I like it because of its simplicity.

(If you don't have any favourite physics experiment, you can also
post chemistry or biology experiment or whatever science)

-Edgardo
 
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Galileo (not me) tried to measure the speed of light in his days.
He had a couple of people with lanterns or torches situated in an open field. The first lighted his lantern and when the next saw it, he would lit his etc. Accounting for the reaction time of the people and such he measured the speed of light.

Pretty funny. Don't know what his conclusion was though. He probably found a lower limit and noted that it was too fast to be measured in this way.
 
Galileo said:
Galileo (not me) tried to measure the speed of light in his days.
He had a couple of people with lanterns or torches situated in an open field. The first lighted his lantern and when the next saw it, he would lit his etc. Accounting for the reaction time of the people and such he measured the speed of light.

Pretty funny. Don't know what his conclusion was though. He probably found a lower limit and noted that it was too fast to be measured in this way.

I think he concluded light was at least 3 times faster than sound, something like that.

Edit: My experiment...I like experiments to do with NMR.
 
Last edited:
Millikan oil drop
 
My favourite is Michelson's one (the interferometer). I think it was one of the most important experiments in physics.
 
My favourite is simple pendulum
it's simple, but useful:
the period of gravity to reasonably high precision, inertia mass and gravitational mass

also I had a experiment in which I tied an ultrasound source on a string to study doppler effect

very impressive
 

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