前几天,我在儿童科普知识上,看到了一个有关放大镜的科学实验,上面说放大镜可以点燃易燃物。但是,我有点儿怀疑,真的能点燃吗?我想亲自试验一下,所以就让爸爸给我买了一个放大镜。放大镜的镜片是用圆形的玻璃制作的,中间厚,边缘薄,也叫凸透镜。第二天,阳光充足时,我开始做试验。我把放大镜的镜 A few days ago, in my childhood science knowledge, I saw a scientific experiment on a magnifying glass that said a magnifying glass could light combustibles. However, I am a bit skeptical, really can light it? I want to test it myself, so let my father bought me a magnifying glass. Magnifying glass lenses are made of round glass, the middle thick, thin edge, also known as convex lens. The next day, when the sun was abundant, I started to experiment. I put the magnifying glass mirror