Well, I thought of building a solar concentrator out of cds, but it ended up being just a … “reflector”.
It could work by having something painted in black and placed in the center of this thing, but I’ll try to build a concentrator some time.
Here are the pictures:
Actually, just before sunset, a couple of the cds( I think about 3-4, but they are 12 !) reflected the light into one spot: it was super bright. Now I know that if I build this correctly, I can have a powerful concentrator that can heat things so much they can catch fire !