Why Do Glasses and Lightbulbs Spontaneously Explode on My Desk?

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    Glass Phenomenon
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mfb said:
Quick question: You are all assuming that michojek uses a CRT monitor? They are quite rare today.

Delaminated transformers make high pitched noises. Eventually ultra sound? Might there be one in the speakers or even in a non-CRT monitor? But quite frankly I doubt this could cause glass to break.
 
A.T. said:
Delaminated transformers make high pitched noises. Eventually ultra sound? Might there be one in the speakers or even in a non-CRT monitor? But quite frankly I doubt this could cause glass to break.
Ferrite cores as used in high-frequency switching power supplies exhibit magnetostriction, so can be a generator of high-pitched sound.