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Aluminium mirror..possible???
I notice Alex is looking for a 20 inch mirror and wondered if making a large mirror from aluminum would be possible...the cry will be that temperature fluctuation will make such a venture unviable however these days we have computers and ability to control temperature rather precisely.
So why not a large alluminium mirror with insulation and computer controls to keep it at a specific temperature.
Or are there other issues to consider?
Alex
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