Abstract
.The project of ideas lamp water bottle recycling.Prepared to use the knowledge of geometry, and the circuit is applied to the invention is a lamp which is made from waste materials, and to compare the quantity of the intensity of the light from the โคมไฟรูป solid geometry such thatInternal surface area nearby the results show that the quantity of the intensity of the light from the lamp to light than a geometric shape, which can make the light from the other is because of the nature of the barrel with a wide base and pointed.Facility in the reflection of light better than the other, we can bring the cone used in doing things such as the images to make a cylinder lamp room, etc., and the waste materials for artificial things help reduce the problem.In eliminating waste and reduce the global warming problem another way!
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