冰屋内部会融化吗?
文章来源: 文章作者: 发布时间:2009-02-06 06:57 字体: [ ]  进入论坛
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爱斯基摩人的冰屋大家一定都听说过吧?这可是名副其实的冰雪房子。爱斯基摩人冬天狩猎的时候就会用这些冰屋做休息站。如果你想体验住在冰屋的感觉的话,你可以去瑞典北部基律纳的朱卡恩佳维村,住宿那里的冰旅馆。在亲身体验之前,所有人都担心的问题就是:这个冰屋里面会不会融化?毕竟人类的呼吸和活动可是会释放很多热量哦!就让下面这篇文章来解决您的担忧吧!

 

The igloo, a temporary winter hunting shelter to the Alaskan Inuit does, in fact, melt inside, but not to a great extent.

The snowflakes falling outside of the igloo, in the harsh Alaskan winter, quickly melt when they land on its roof, and provide a replacement1 layer of insulation2 for the igloo. The ongoing3 freezing and re-freezing of the igloo, hardens it, and transforms the blocks of snow the Eskimos used in the construction process into a solid, icy, domed4 refuge. The igloo can now withstand the weight of a massive polar bear, should one happen along and have the urge to play "king of the mountain."

The initial freezing and re-freezing of the igloo takes place at the end of the igloo's construction. First, the men must dig a trench5 into a fresh snow- drift, and, using their knives, cut blocks of snow from it that are specifically shaped to face inward when fully6 laid out. They then lay the blocks on their edges to form a circle, cutting them to size as they go, so that the end result will be a narrowing spiral. They cap the igloo by dropping a keystone, or block with edges cut wider above than below, into the remaining gap in the roof, and "grout" the gaps between blocks of snow with additional snow.

The men then call in the resident expert, the Inuit woman, to put the finishing touches on the igloo. Armed with her whale blubber lamp, she enters the structure, lights her lamp to the highest possible setting, beats a hasty retreat, and seals the entrance with a block of ice. Inside the igloo, the snow on the roof begins to melt but, because of its domed design, the water melts down the sides of the igloo, and soaks the blocks of snow. When the blocks are almost completely saturated7 with water, the woman returns, douses8 her blubber lamp, and allows the frigid9 outside air to rush in, transforming the fragile snow structure into one of hard, solid ice.

The igloo is now prepared for its temporary tenants10, whose body heat, combined with the warmth of one to two blubber lamps, maintain its interior at approximately 55°F. Not until the winter ends, and the exterior11 temperature rises, does the igloo begin to melt. Hopefully, the Inuit will be long gone by then, as the igloo will collapse…dome-first!



点击收听单词发音收听单词发音  

1 replacement UVxxM     
n.取代,替换,交换;替代品,代用品
参考例句:
  • We are hard put to find a replacement for our assistant.我们很难找到一个人来代替我们的助手。
  • They put all the students through the replacement examination.他们让所有的学生参加分班考试。
2 insulation Q5Jxt     
n.隔离;绝缘;隔热
参考例句:
  • Please examine the insulation of the electric wires in my house.请检查一下我屋子里电线的绝缘情况。
  • It is always difficult to assure good insulation between the electric leads.要保证两个电触头之间有良好的绝缘总是很困难的。
3 ongoing 6RvzT     
adj.进行中的,前进的
参考例句:
  • The problem is ongoing.这个问题尚未解决。
  • The issues raised in the report relate directly to Age Concern's ongoing work in this area.报告中提出的问题与“关心老人”组织在这方面正在做的工作有直接的关系。
4 domed e73af46739c7805de3b32498e0e506c3     
adj. 圆屋顶的, 半球形的, 拱曲的 动词dome的过去式和过去分词形式
参考例句:
  • I gazed up at the domed ceiling arching overhead. 我抬头凝望着上方弧形的穹顶。
  • His forehead domed out in a curve. 他的前额呈弯曲的半球形。
5 trench VJHzP     
n./v.(挖)沟,(挖)战壕
参考例句:
  • The soldiers recaptured their trench.兵士夺回了战壕。
  • The troops received orders to trench the outpost.部队接到命令在前哨周围筑壕加强防卫。
6 fully Gfuzd     
adv.完全地,全部地,彻底地;充分地
参考例句:
  • The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
7 saturated qjEzG3     
a.饱和的,充满的
参考例句:
  • The continuous rain had saturated the soil. 连绵不断的雨把土地淋了个透。
  • a saturated solution of sodium chloride 氯化钠饱和溶液
8 douses 8d38df2b74cd0c9d8b077ea2f59297a5     
v.浇水在…上( douse的第三人称单数 );熄灯[火]
参考例句:
  • The strategy involved too douses (two doses) of measles vexing (vaccine) with supplements of vitamin A. 提高麻疹免疫的策略还包括两种加有维他命A添加济的疫苗。 来自互联网
9 frigid TfBzl     
adj.寒冷的,凛冽的;冷淡的;拘禁的
参考例句:
  • The water was too frigid to allow him to remain submerged for long.水冰冷彻骨,他在下面呆不了太长时间。
  • She returned his smile with a frigid glance.对他的微笑她报以冷冷的一瞥。
10 tenants 05662236fc7e630999509804dd634b69     
n.房客( tenant的名词复数 );佃户;占用者;占有者
参考例句:
  • A number of tenants have been evicted for not paying the rent. 许多房客因不付房租被赶了出来。
  • Tenants are jointly and severally liable for payment of the rent. 租金由承租人共同且分别承担。
11 exterior LlYyr     
adj.外部的,外在的;表面的
参考例句:
  • The seed has a hard exterior covering.这种子外壳很硬。
  • We are painting the exterior wall of the house.我们正在给房子的外墙涂漆。
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