男友太凶猛1v1高h,大地资源在线资源免费观看 ,人妻少妇精品视频二区,极度sm残忍bdsm变态

您現在的位置: Language Tips> Easy English> Odd Question  
 





 
Why does a room illuminated by a television appear blue?
[ 2006-04-19 08:52 ]

Color television pictures are produced by three different colors: red,green and blue. These combine to create awhitishlight with a color temperature close to that of daylight (5500 to 6500Kelvin).

Color temperature is a way of describing the relative amounts of the different colors that make up the light from a particular source. It can be thought of roughly as the temperature an object would need to be heated to give off light with that mixture of wavelengths. At low temperatures, low-energy colors such as red and yellow predominate; at higher temperatures the proportions of green or blue increase.

For example, standardtungstenlight bulbs have a color temperature of 3200 K and are very yellow. Your eyes adjust to this light, making it appear whiter and more like daylight. Attwilightor at night, anything with a higher color temperature than tungsten lights, such as a television, appears distinctly blue.

The same effect is seen if you look out of a room lit by tungsten light. The twilight appears particularly blue, and yet if you were to go outside and look at the same scene, the eye would no longer compare it to the lit room and the colors would appear more neutral.

Theconverseis also true. Viewed from outside, the windows of houses lit by tungsten light sources look distinctly yellow.Fluorescentsources generally have aspectrummuch closer to that of daylight and don't produce the same effect.



whitish:
發白的

Kelvin:絕對溫標

 

 

 

 


tungsten:

twilight:黎明

 

 

 


converse:
相反的

fluorescent:
熒光的
spectrum:光譜

 
 
相關文章 Related Stories
 
 
 

本頻道最新推薦

     
  為什么下雪時天氣暖
  You are the smartest fish I've ever seen!
  Dog burger
  為什么老了脾氣好
  飛蛾為什么撲火

論壇熱貼

     
  開個題目大家扯:hotel & restaurant
  追求某人
  請教工商年檢如何翻譯
  How to translate “中國老字號”into English?
  "港股直通車"怎么翻譯?
  兩免一補怎么說?




主站蜘蛛池模板: 神木县| 民勤县| 三门峡市| 郸城县| 马山县| 山西省| 会昌县| 泽普县| 玉林市| 裕民县| 紫云| 长治市| 林口县| 通山县| 东台市| 五河县| 阳谷县| 项城市| 赤水市| 抚宁县| 团风县| 禹城市| 临泉县| 神池县| 布尔津县| 锡林郭勒盟| 绥德县| 鹿邑县| 增城市| 沭阳县| 隆安县| 珠海市| 淮阳县| 景洪市| 沈丘县| 荥经县| 大连市| 井研县| 中宁县| 德州市| 台北市|