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The sun is the ultimate, renewable energy source. Every day for the past 10 billion years or so, the sun has been pouring out unimaginable amounts of energy. The Earth, orbiting at a distance of 150 million kilometres from the sun, intercepts a tiny fraction of this
solar output. At the Earth's surface, incoming energy from the sun is absorbed by the land, water and atmosphere, and converted into measureable heat. This heat acts like a giant engine, creating winds and currents in our atmosphere, oceans, and rivers. more....
solar oven that really cooks!
The solar oven you will be building from this plan uses aluminum foil to gather sunlight. The foil-covered panels of the oven reflect sunlight into the cooking chamber, which is painted black. Heat is produced when the concentrated sunlight is absorbed by the black surface of the cooking chamber.
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