可以用甚麼反光的東西用溶冰??

2011-03-04 6:21 pm
請問可以用甚麼反光的東西溶冰?? 15點!!!

回答 (3)

2011-03-05 8:10 pm
✔ 最佳答案
Convex lens

Convex lens not only focuses sunlight, but also focuses infrared radiation from the sun. Therefore, the heat focuses can be used to melt ice.
2011-03-14 2:36 am
銅/鋁製的器皿+熱,就得喇
2011-03-04 6:23 pm
銅/鋁製的器皿均可...........


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