On 2/16/2015 4:57 AM, scott wrote:
>> If a parabola reflects parallel lines into its focus, what does a
>> catenary do? What about non-parallel lines?
>
> LOL at the typical response about burning the grass! I assume you are
> using a curved mirror like this because you want the light hitting the
> grass to be more intense than the light you'd get if you just pointed
> the grass straight at the sun. Why not just use a few flat mirrors
> angled correctly, that way you wouldn't need to worry about uniformity
> and they should be much cheaper to manufacture.
>


They're not pointed anywhere in general. I guess pointing the mirrors at 
the sun might be a good idea.

Post a reply to this message