> When all else fails do the experiment...

I knew the Dremel would work - I use them with due care to cut all
sorts of otherwise intractable things.
Apart from blade size (too small as you say)
That plus vaccuum may work even better.

> And yes, they do shatter if looked at the wrong way. =A0I only broke one =
which
> I consider an excellent result.

Yes. I hav a large supply. A good idea as they jumpto hyperspace
without warning One moment there, the next an empty arbor.

> Or you can wait for the magic 1W IR laser.

It would be educational to work out the likely energy flow from a near
point source in insulated Al at melting point.
Outer against can can be thermally high resistance.
Can inner could be hot air washed to raise temperatures.
Flow through Al away from point becomes (I think) the main load.
Or, just try it with a DVD LASER.
I have many dead CD drives (another part is of interest).
Ferwer DVDs.
Would be interesting to try.
Can burst green balloons at several metres with some DVD units I am told.
Yet to try.
Do not stare into beam ...

______________

My wife was recently persuaded to stare into the working end of a YAG
LASER with her remaining bad eye recently. I got to watch.
Soft thump as massive well mounted caps somewhere give up their energy.
Operator retargets and repeats. Every few seconds. Maybe a few 120's
of shots, if that.
2.5 minutes go to whoa.
Perfect restoration of had-been-clouding vision - due to opacifying of
lens sac at rear - left over from intraocular lens transplant needed
months after an Epithelial peel.
Marvellous what you can do with a LASER
Hope for cans yet.


        Russell

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