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
34
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.
【C13】
选项
A、ultra small
B、ultra-fast
C、ultra-hot
D、ultra-cold
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/vbhd777K
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
Stinking(发臭的)BusesStinkingbusesjam(挤满)thecrowdedstreet.Drivers(51)atoneanotherandhonk(鸣喇叭)theirhorns.Smog(烟雾)h
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhetherthewe
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Allinstructorswilla
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
ManyWomenWhoBeatCancerDon’tChangeHabitsManywomenwhobattlebreastcancerwilltellyouit’salife-changingexperience
SomeSundaynewspapersmaybelongtothesamepublishingcompanybutarenoteditedbythesamegroupofpeople.Manyboysand
SomeSundaynewspapersmaybelongtothesamepublishingcompanybutarenoteditedbythesamegroupofpeople.InBritainmen
Accordingtothepassage,oneofthereasonswhynewbornsinmountaincommunitiesareunderweightisthattheirmothersareunde
Themotherofthethreechildrenisthemanagerofalargecircus.Itisnoteasytolookafterthreesmallchildrenbecauseso
A.ConfirmationoftheNewEffectB.Pain-relievingandFever-reducingEffectsofAspirinC.TheIgnoredSignificantObservation
随机试题
外毒素
患者男,50岁。5年来反复出现饭后胸骨后烧灼痛,放射至肩背部及耳部,时有吞咽困难症状,服用法莫替丁能缓解症状,多次心电图检查正常。若应用奥美拉唑及莫沙必利治疗,一般疗程应为
男,50岁。因腹胀半月就诊。查体:可见腹壁静脉曲张,血流方向自下而上,双下肢水肿。最可能的病因是
行使追索权的票据当事人,有可能是代为清偿票据债务的保证人、背书人。()
对进口列入《限制进口可用作原料的废物目录》及《自动进口许可证管理类可用作原料的废物目录》的废物,报关单位向海关申报时应当提交《进口废物批准证书》;对进口未列入上述目录的废物,国家规定()。
期货交易所的总经理不能行使的职权是( )。
中外合资企业均具有中国法人资格;而中外合作经营企业可以具有中国法人资格,也可以不具有中国法人资格。()
世界上每年的粮食产量稍许超过为世界人口提供最低限度的必需量。预测不足的粮食产量将引起将来的饥饿危机是没有意义的,任何饥饿危机将由分配问题引起,而不由产量问题引起。上面的论述假设了下面哪一项?
他每天吃很多甜食。
ForoverthreedecadesIntelhasbeenprovidingSemi-conductorchipsforcomputerhardwaremakersaroundtheworld.Intel’schip
最新回复
(
0
)