[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [ATM] Beveling mirror disks

Wow, with one of those pyrex pot lids that keep showing up on e-bay as
fast thin mirrors with a 1/4" center perforation you could have a wicked
schmidt solar cooker with minimal coma if the wok was aluminized...
The flat spot should be shadowed by the secondary cooker support.   :^)
George Anderson
Montreal Canada

Clear skies and good health
Daniel Fundo wrote:
> 
> <<  Speaking of fast, what do you suppose the f-ratio of a typical wok
> is?  >>
> 
> Just measured ours......works out to be a bit less than f/.7, but it has
> a terrible flat spot in the center, and a very small radius TDE.
> 
> *****-----
> Dan F.
> Former Secretary/MAS
> Memphis, TN
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
_______________________________________________
ATM mailing list http://www.atmlist.net/