[Rockhounds] OT: Death Rays and melting stones

[Kreigh Tomaszewski]

The Hale disk is only horizontal when the telescope is pointing straight
up.

If the Inca's used a 3 meter disk for stonework they probably quarried
the blocks conventionally and brought them to the stationary disk for
dressing. 

Kreigh




J Bryan Kramer wrote:
> 
> That 10 cm was a WAG, but considering the strength of gold as a structural
> material I wonder if a 1 cm thickness would be possible in a 3 meter disk.
> The Hale disk is of course horizontal and fully supported underneath and
> stationary. This 3 meter disk would be used vertically and manhandled around
> the quarry. Not the same sort of thing at all.
> 
> BK
> 
> > But I take exception to your 10 cm thickness. One cm (or less) would be
> > used. You want to make your dish as thin as possible and still retain
> > structural integrity. There is no need to make it that thick. BTW, the
> > mirror of the Hale Telescope weighs about 13,000 kg, not counting the
> > mounting assembly. I don't think weight would have been a real issue.
> >
> >
> 
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