有冇人可以寫一篇”why water is 透明”的文章?(要English)Help!!!!

2008-06-11 10:49 pm
有冇人可以寫一篇"why water is 透明"的文章?(要English)Help!!!!
(20分)
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(150字以上)

回答 (2)

2008-06-13 4:44 am
✔ 最佳答案
Water is transparent because water absorbs very little energy at the frequency of visible light. From the scientists' point of view , they actually no real
reasons that make everyone believe, some of them say the God wants to make it and create it like this, some will make some fake stories to get the answer,
this actually is still a mystery, it didn't have much reason, it is just like a
question asking why the earth is circle, not square??? Similar things, no true answer!
2008-06-12 1:35 am
First, the water is colored, water-absorbing infrared and will be part of a red light, coupled with the Blu-ray scattering than other colors, so water is slightly blue.



Second, the water surface reflects light, we see a reflection, feeling like to see on the water, the reflection is on the edge of the water -

Third, the assumption of a milk bottle water, milk bottles because of a surface, the water inside had a convex lens on the role (when the light from the low-density air Shedao higher density of water will have refraction), we see Further examination of the images, feelings, and so on to see if the water; assumption of a cube bottles of water, although not the role of a convex lens, but there is still light refraction, we can also see the water, just not as strong feeling on.

中文的意思

第一,水是有顏色的,水份子會吸收紅外線和一部份紅光,再加上藍光的散射比其他顏色大,所以水是微微藍色的.



第二,水的表面會反射光線,我們看見了倒影,感覺上就等如看見了水,倒影的邊緣就是水的邊

第三,假設以一牛奶樽盛水,由於牛奶樽有曲面,內裡的水就產生了凸透鏡的作用(當光線從低密度的空氣射到較高密度的水會產生折射),我們看見了凸透鏡後的影像,感覺上就等如看見了水;假設以一立方體樽盛水,雖然沒有了凸透鏡的作用,但光線折射還是存在,我們還可以看見水,祇是感覺上沒那麼強烈.
參考: me and blog


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