On Tue, Jan 24, 2006 at 04:16:20PM +1300, Richard Prosser wrote:
> > Actually I once saw a very interesting sundial based on that principle
> > at Sudbury, Ontario's Science North. A large, 6 inch, diameter glass
> > sphere was positioned in the sun and a band of paper was positioned
> > behind it such that the sun was magnified and burned the paper over the
> > course of the day. Of course, you had to replace the paper, a special
> > non-flame propegating type, each day.
> >
> 
> Isn't that just a standard (old style) sunshine recorder?

Quite likely, I've never heard of a sunshine recorder, but that device
would record sunshine just fine...

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pete@petertodd.ca http://www.petertodd.ca
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