[Jewelry making - Article 00226] - Re: [Orchid] Setting - cone shaped hole

[Charles Lewton-Brain]

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Hi,

    here are definitions of the critical angle etc here at ganoksin:
    http://www.ganoksin.com/borisat/nenam/optic.htm 

    http://www.ganoksin.com/borisat/nenam/optic1.htm 

best
Charles

Charles Lewton-Brain/Brain Press
Box 1624, Ste M, Calgary, Alberta, T2P 2L7, Canada
Tel: 403-263-3955  Fax: 403-283-9053  Email: brainnet AT telus.net

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