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Jones, Steven E., 1949-

"The BYU Solar Cooker/Cooler"


The shiny dish is blackened on the outside and still shiny
on the inside. A man is holding the lid for the dish,
similarly blackened.]

Construction Steps

1. Cut a Half-circle out of the cardboard, along the bottom
as shown below. When the funnel is formed, this becomes
a full-circle and should be wide enough to go around your
cooking pot. So for a 7" diameter cooking pot, the radius of
the half-circle is 7". For a quart canning jar such as I use,
I cut a 5" radius half-circle out of the cardboard.
[Image: 03.jpg -- Photo description: This photo shows a man
kneeling beside a rectangular sheet of cardboard on the floor.
He is using a plastic bucket as a pattern to cut a half-circle
from the center of a long edge of the triangle.]
2. Form the Funnel. To form the funnel, you will bring side
A towards side B, as shown in the figure. The aluminum foil
must go on the INSIDE of the funnel. Do this slowly, helping
the cardboard to the shape of a funnel by using one hand to
form creases that radiate out from the half-circle.


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