Can Heat Cause Wrought Iron to Emit Audible Sounds?

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Discussion Overview

The discussion explores the relationship between heat and sound, specifically whether heat can cause wrought iron to emit audible sounds. Participants consider the conditions under which this might occur, including temperature effects and the nature of vibrations in materials.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions if certain temperatures can cause wrought iron to vibrate in a way that produces sound, drawing a comparison to a bell.
  • Another participant distinguishes between random vibrations caused by heat and organized vibrations that constitute sound, suggesting that sound is a special case of vibration.
  • A third participant discusses the narrow frequency range of audible sound within the total thermal vibration spectrum of solids, indicating that while high temperatures might lead to audible sounds, the conditions must prevent the material from transforming into gas.
  • A later reply expresses a desire for further education on the topic to better understand the foundational concepts.

Areas of Agreement / Disagreement

Participants present differing views on the relationship between heat and sound, with no consensus reached on whether heat can directly cause audible sounds in wrought iron.

Contextual Notes

Participants note the dependence on temperature and the physical state of materials, as well as the limitations of sound production based on the frequency of vibrations and the absorption of sound in solids.

Who May Find This Useful

Individuals interested in the physics of sound, materials science, and the effects of temperature on physical properties may find this discussion relevant.

jfxjmn
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I have been tripping over this for a while. If heat and sound are both essentially vibration, is it possible for certain temperatures to cause audible sounds in substances? Specifically, I am trying to figure out at what temperature wrough iron will vibrate just right... like a bell or something. I heated a cannon ball and it really seemed to be emitting a sound. Would that be an effect of the air temperature being raised, or is it possible that the molecules of metal kinda start ringing?
 
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Heat is a random vibration. Sound is an organized vibration. So sound is a special case of a type of vibration. So it is easier to understand that sound can lead to heat, but not the other way around.

Zz.
 
In the total thermal vibration frequency spectrum of a soild, the frequency of audible sound is in an extremely narrow range. Only very finite phonon with audible frequency is excited even at room temperature, and the strength is so low as to easily be absorbed and scattered. so we can not feel it. If temperature is high enough while keeping solids or liquids not being transformed into gas (under high pressure), I think we would hear some thing.
 
thank you for the educated input, I really want to take some classes so that I don't have to ask questions on the basics...
 

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