Re: Need more light

[Glenn Lawton <lawtonglenn@gsmai.com>]

> So, how can a microscopic bit of finger oil make it shatter?
> 
> The oil etches the glass, making it much more susceptible to shattering due
> to temperature changes.


It is my understanding that the oil has very different heat
transfer properties than the glass, and it acts like a heat
sink, thereby greatly increasing the temperature at very
localized spot, where the local glass section starts to expand,
but the glass area around the oil doesn't expand, and.....

...pop...


Glenn