4 May
2013
4 May
'13
2:52 p.m.
A slightly more optimal [shape + position] would be for each mirror to be a portion of the prolate ellipsoid with foci at the sun and at the location to be burned that passes through the location of the mirror. The various ellipsoids involved will typically be different from each other. --Dan On 2013-05-04, at 1:35 PM, Henry Baker wrote:
The optimum shape would be a portion of a parabola with a focus on the area you want to burn.