[請益] 光線的物理現象
先說不好意思我以前的物理學的不好
而且年代久遠已經忘光了
最近在家發現了一種搞不清楚的現象
就是當陽光穿透我家紗門時
在牆上居然投射出橫紋的陰影
不過我仔細觀察紗門上的網眼是方正的
有人可以跟我解說為什麼會這樣嗎?
附上圖1紗門(請忽略莫耳紋)
http://i.imgur.com/M5Yk6ly.jpg
圖2牆上的橫紋陰影
http://i.imgur.com/O7co4m6.jpg
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