Break a glass with your voice?
You have probably heard of the phenomenon of certain people supposedly breaking a glass with their own voice. Often one asks oneself whether there is anything to it.
Can sound waves break a glass?
This is a question many people have asked themselves for ages.
- You have often heard of the phenomenon of being able to destroy a glass with your own voice.
- In fact, a few cases are said to have become known in which this is actually possible.
- From a purely physical point of view, sound waves at a certain frequency and intensity can cause glass objects to vibrate for so long that they shatter.
- The problem with the human voice is quite different here. In order to actually break a glass with your own voice, it is necessary to precisely hit and hold the so-called resonance frequency of the object.
- This also has to take place over a period of a few seconds so that a glass can actually shatter.
- This is actually possible with electronically generated tones, as these precisely target the The resonance frequency of the object can be adjusted and it is also possible to adjust the frequency to keep exactly.
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How is this possible with the voice?
- As already said, the human voice must also hit a specific frequency and must be precisely adhered to over a certain period of time in order to actually break a glass can.
- Few cases are known in which this has already been achieved. However, this requires hard and lengthy training in order to train the voice to be able to hold a frequency as precisely as possible.
- In addition, the sound pressure of the voice must be trained accordingly in order to actually break a glass.
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