可以用甚麼反光的東西用溶冰??
回答 (3)
2011-03-05 8:10 pm
✔ 最佳答案
Convex lensConvex 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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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110304000051KK00239