On Thu, Jan 15, 2015 at 1:23 PM, Anthony Jackson <ajackson@iii.com> wrote:
Effective drilling rate of maximal sun ray: 1mm/sec. Actually less due to the fact that somewhere around 60% of the light will be reflected.

Ah, well . . . it *used* to make for a nice story . . . :) 


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Richard Aiken

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