首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
What Is the Coolest Gas in the Universe? What is the coldest air temperature ever recorded on the Earth? Where was this low
What Is the Coolest Gas in the Universe? What is the coldest air temperature ever recorded on the Earth? Where was this low
admin
2013-11-25
74
问题
What Is the Coolest Gas in the Universe?
What is the coldest air temperature ever recorded on the Earth? Where was this low temperature recorded? The coldest recorded temperature on Earth was -91℃, which【C1】______in Antarctica in 1983.
We encounter an interesting situation when we discuss temperatures in【C2】______temperatures in Earth orbit actually range from about 20℃ to 120℃. The temperature depends upon【C3】______you are in direct sunlight or shade. Obviously, -120℃ is colder than our body can safely endure. Thank NASA science for well-designed space【C4】______that protect astronauts from these temperature extremes.
The space temperatures just discussed affect only our areal of the solar【C5】______. Obviously, it is hotter closer to the Sun and colder as we travel away from the Sun. Astronomers estimate temperatures at Pluto are about -210°C. How cold is the lowest estimated temperature in the entire universe? Again, it depends upon your【C6】______. We are taught it is supposedly【C7】______to have a temperature below absolute zero, which is -273℃, at which atoms do not move. Two scientists, whose names are Cornell and Wieman, have successfully cooled down a gas to a temperature barely【C8】______absolute zero. They won a Nobel Prize in Physics in 2001 for their work—not a discovery, in this case.
Why is the two scientists work so important to science?
In the 1920s, Satyendra Nath Bose was studying an interesting【C9】______about special light particles we now call photons. Bose had trouble【C10】______other scientists to believe his theory, 【C11】______he contacted Albert Einstein. Einstein’s calculations helped him. theorize that atoms 【C12】______behave as Bose thought—but only at very cold temperatures.
Scientists have also discovered that【C13】______atoms can help them make the world’s atomic docks even more accurate. These clocks are so accurate today they would only lose one second 【C14】______six million years! Such accuracy will, help us travel in space because distance is velocity times time(d = v× t). With the long distances involved in space【C15】______, we need to know time as accurately as possible to get accurate distance.
【C5】
选项
A、wind
B、energy
C、system
D、rays
答案
C
解析
转载请注明原文地址:https://kaotiyun.com/show/Zbhd777K
本试题收录于:
职称英语卫生类A级题库职称英语分类
0
职称英语卫生类A级
职称英语
相关试题推荐
Youcaneatlunchduringthismeeting.
SnowboardingVictoriaJamiesonfromBritainstartedsnowboardingat20.Sheisnow23andhaswonmanycompetitionsinthiss
SnowboardingVictoriaJamiesonfromBritainstartedsnowboardingat20.Sheisnow23andhaswonmanycompetitionsinthiss
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhetherthewe
Thecompanyrecommendedthatanewpetrolstationbebuilthere.
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
WhichofthefollowingisNOTtrueofministrokes?Topreventministrokesfromturningintomajorstrokes,itisimportantto
OnBritishNewspapersBesidesthedailynewspapers,thereareanumberofSundaynewspapersinBritain.Manyofthemareconn
随机试题
低氢型焊条类别代号是F1。()
补体对不同种类的靶细胞的溶解效果有所不同,下面哪种靶细胞对补体不敏感A.血小板B.红细胞C.支原体D.革兰阴性杆菌E.革兰阳性菌
女,37岁,腰腿痛半年,结合图像,最可能的诊断是
护士在执业过程中,应当遵守
当路基检验评定段的压实度代表值K小于压实度规定值时,则该评定路段压实度为不合格。()
【2020年真题】某房屋建筑工程主体结构封顶后,需对扣件式钢管双排脚手架进行拆除。下列脚手架拆除作业的做法中,正确的是()。
下列有关标准成本中心的说法中,正确的有()。
简述教师劳动的特点。
(2017年山东)沉积是自然界中一种重要的成岩过程,下列关于沉积的说法正确的是()。
若一个函数的原型为“int*Xfunl(intx,int&y,charz);”,则该函数的返回值类型为()。
最新回复
(
0
)