Thursday, May 19, 2011

Glass cutting

My son, Andrew, informed me that the head rest on the car moved as fast as glass flows....I had to question that, I know glass is not a 'solid' but how fast does it flow?
If you are planning to cut glass and you do the score with a glass cutter you only have 3 months to make the break, after that the flow of the glass will have dulled the score to the point that it won't break there.
Inquiring minds want to know.

1 comment:

Reed Stone said...

The viscosity of glass could be around 100,000,000,000,000,000,000 poises. metal flows faster (gold, lead and silver for example) I would be skeptical of the 3 month claim due to glass flow.