Can Sound Waves Break Glasses? All About Sound Waves

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Discussion Overview

The discussion revolves around the phenomenon of sound waves and their potential to break glass, particularly through singing. Participants explore the conditions under which sound waves might resonate with objects, the role of frequency, and anecdotal evidence related to this concept.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether singing in a bathroom improves vocal performance, linking this to the concept of sound waves and resonance.
  • Another participant proposes that it is theoretically possible for sound waves to break glass if the frequency matches the natural frequency of the glass, leading to increased oscillation and eventual breakage.
  • A different viewpoint suggests that while it is possible for sopranos to break wine glasses, it is generally very difficult without amplification, as they mention the use of a focused speaker to achieve this effect.
  • Another participant asserts that breaking a glass requires a crystal wine glass and mentions that the thickness of the glass might play a role, suggesting a method involving matching the note sung to the glass's resonant frequency.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of breaking glass with sound waves, with some agreeing on the theoretical possibility while others emphasize the practical challenges involved. No consensus is reached on the specific conditions required for this phenomenon.

Contextual Notes

Participants mention various factors such as the type of glass, its thickness, and the method of sound production, which may influence the outcome, but these aspects remain unresolved and speculative.

Who May Find This Useful

This discussion may be of interest to those curious about acoustics, sound wave phenomena, and the practical applications of resonance in everyday objects.

franz32
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Is it true that people can sing better inside a bathroom? How could that be?

Other links in internet tells about that Walls of Jericho (Old TEstamament).
Joshua and his men surrounded the city, blew their trumpets and shouted very loudly... then the wall crumbled... I always thought of that x-men siryn who can destroy things by shouting loudly... is that physically possible, especially that of the wall?

Can sopranos or very high-pitched people break wine glasses by singing an appropriate note? I saw it in some Filipino movies... is that true? I don't know if that's fictionor whatever...
 
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Theoretically it is possible.

When the frequency of the sound wave matches natural frequency of the object, the object will then starts to oscillate with a larger amplitude hence more energy, the object would eventually reach a critical state where the atoms would no longer be able to hold together and break apart.
 
franz32 said:
Can sopranos or very high-pitched people break wine glasses by singing an appropriate note? I saw it in some Filipino movies... is that true? I don't know if that's fictionor whatever...

It depends on the wine glass but it is generally extremely difficult to do. The only way I’ve seen it done was with a focused speaker being placed close to the wine glass and the singers voice recorded and amplified and played over the speaker.
 
Its true. But you need a crystal wine glass. I don't know about shape. And the thicker the better(I think). The person would thick on the glasss, listen to the note and sing the same note(I think). And then it will break.
 

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