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Who manufactured Hale's lens?

Hale's 100 inch lens built in the early 1900s was the largest solid piece of glass made until then. The lens was made by a French specialist who poured the equivalent of ten thousand melted champagne bottles into a mold packed with heat maintaining manure so that the glass would cool slowly and not crack.



This news arrived on: 09/01/2008
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Posted Comments:

09-03-2008 21:32
bobbyr54 wrote:

telescope

I don't know about the manure, but I do know that in the Hale telescope, what you're talking about is not a lens. Hale is a reflecting telescope, and this was a mirror that sat at the bottom end of the telescope that would reflect the incoming light back up to another mirror and then to an eye
piece.



09-03-2008 17:09
Maggie wrote:

lens

EWWWWWWWWWWW!!!!!
okay,so it needed to cool down slowly. couldn't he have used dirt?
Manure,ewwwwwwww. i bet his place smelled up the town for months.




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