Handicrafts-5. Self made solar cooker

Handicrafts-5. Self made solar cooker Find a concave reflector bowl on a large flashlight, and use a rigid foam or wood to cut a cylinder about 4 centimeters in diameter, so that the diameter can be tightly inserted into the round hole of the reflecting bowl. Drill a fine hole horizontally at one end of the cylinder, insert an iron wire with a diameter equivalent to the hole diameter, and then turn the two ends of the iron wire exposed outside the cylinder into 90 °, leaving 5cm each. The column is inserted into the round hole of the reflecting bowl, and the two ends of the wire are inserted on a foam plastic or wooden floor. Sharpen the two ends of a thin bamboo stick, insert one end into the column in the center of the reflective bowl, and insert a small potato on the other end. Put the device in the sun, make the reflective bowl face the sun, and then patiently adjust the length of the bamboo stick so that the inserted potato is right on the luminous focus. Before long, the potatoes will be roasted by the sun and give off fragrance.