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
28
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.
【C4】
选项
A、foods
B、bed
C、tools
D、suits
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/pbhd777K
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
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhetherthewe
HowtheBodyKeepstheSameTemperatureThetemperatureofyourbodyshouldbealwaysjustthesame,nomatterwhetherthewe
Choosingatopicforresearchisimportantinthatyouwillputagreatdealoftimeandenergyintoit.Anexcitingandorigin
CancerChatisdifferentfromotherforumsinthat"Thecharity"inthelastlinebutonerefersto
CarsAreGoodfortheEnvironmentBritain’smotorindustryisplanningamajorpublicitycampaigntocounterwhatitseesas
"Reworked"asusedinParagraph1means"______".Theexpression"getacrosstochildren"inthelastparagraphprobablymeans"
Accordingtothepassage,oneofthereasonswhynewbornsinmountaincommunitiesareunderweightisthattheirmothersareunde
A.ConfirmationoftheNewEffectB.Pain-relievingandFever-reducingEffectsofAspirinC.TheIgnoredSignificantObservation
Breastfeedinghelpswomenpreventthedevelopmentofbreastcancertoacertaindegree.Anykindofwinecontainsresveratrol.
Breastfeedinghelpswomenpreventthedevelopmentofbreastcancertoacertaindegree.Estrogenmaycontributetothedevelopm
随机试题
经皮肝穿刺胆道造影(PTC)检查后,应重点观察()
A>103cfu/mlB>104cfu/mlC103~104cfu/mlD>105cfu/mlE104~105cfu/ml尿标本培养为革兰阴性杆菌,有诊断意义的是
下列给药途径属于非经胃肠道给药剂型的是
李某,男,22岁。患胆石症3年。酗酒后突发脘胁胀痛,胸闷心烦,口苦泛恶,身目发黄,发热,身重倦怠,大便不爽,尿黄。舌红,苔黄腻,脉弦滑数。实验室检查:血清淀粉酶>800索氏单位,血常规示白细胞高达21×109/L。宜辨证
工程建设项目可划分为()
下列有关所得税列报的表述中,正确的有()。
下列事件的最佳逻辑排列顺序是()。(1)浮出水面(2)呼救求援(3)循序上升(4)落入水中(5)保持镇定
1992年上半年,上海股市股本总额为多少?1993年上半年,上海外地股本额比1992年同期增加多少?
(1)打开“订货管理”数据库,并将表order.detail添加到该数据库中。(2)为表order_detail的“单价”字段定义默认值为NULL。(3)为表order_detail的“单价”字段定义约束规则:单价>0,违背规则时的提示
Namedafteranex-GovernorofNewSouthWales,SydneyistheState’scapitalcity.Locatedonthesouth-eastcoastofAustralia
最新回复
(
0
)