Solar cooker mark 7

As with most good ideas there exists a large chasm between prototype#1 and a final, practical, useful device. This was certainly the case with the solar cooker. After much brainstorming and many experimental prototypes I now have a workable device. The trick is to keep the pot at the focal point at all sun angles and to keep the pot stable and level. Mark 7 has now cooked a number of meals and boiled many kettles of water. The performance far exceeds my expectations and has very similar cooking power to a typical gas stove burner. This is now truly a useful alternative to a conventional stove or kettle. Now to figure out a way of getting one into every household in Africa....