shoebox solar oven

I made this solar oven from nothing but:

a shoebox (with lid attached, not removavel),
an old winter shirt,
a plastic bag,
some black paper,
two pencils,
and alluminium foil.

Step 1: The lid

Cut the lid like the image.

Comments

[triumphman]

well, does it cook anything, or is this theoretical! Show us something tangible.

[tgferreira184]

I put an apple on it around 12 o' clock, in a cloudy day and at 20 o'clock it was almost cooked, but solar ovens, unless hi-tech they are very slow. To show you that solar ovens work, the first was able to melt rock!

[triumphman]

Rock ?

[tgferreira184]

yes, basalt!