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Why magnifying mirror is dangerous under the sun? |
| Author： Date：2014/8/28 9:48:25 |
All magnifying mirror has a focusing point. When light rays is concentrated in one spot it will burn wood or paper. Becareful when you have a magnifying mirror near a window.
*How to check a magnifying mirror?
Many of the mirrors are distorted. If the refection of distance object is bended, the mirror is distorted. |
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