Homemade incinerator beam!

[Ruatha]

Originally posted by Suicide Junkie:

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Originally posted by mottlee:
OK How did you get them all to "Look" at the same point? I know you did not stand in front to adjust them!

I used a large wooden board, actually.

Hold it up in the focus, move a few more mirrors into alignment, then hose it down again before the gushing steam turns into billowing smoke.

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It wouldn't be very good for a barbecue...
There's not very much heat, just extremely high temperatures.
So you wouldn't cook anything, just burn spots on/holes in the surface

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But, if you put a metal pan in the focal point, the heat would dissipate out in the metal and generate a more diffuse heat, enabling some cooking/baking, but perhaps not barbeque though.
There are actually solar driven stoves.

SJ, can you try boiling some water?