首页
登录
职称英语
As we know, it is not easy to build a satellite. Building a traditional satel
As we know, it is not easy to build a satellite. Building a traditional satel
游客
2024-07-27
34
管理
问题
As we know, it is not easy to build a satellite. Building a traditional satellite normally takes years. The costs can be as high as $ 250 million or more. Most members of the design teams have worked in the field for a long time. They hold advanced degrees in math, science, or engineering.
But things are changing. High costs, unusual educational requirements and long start-up times are no longer an obstacle to space exploration. The scientists at Stanford University have developed a new type of tiny, inexpensive earth-orbiting satellites that go from ideas to launch in a year.
So far, college students have built and launched several cube-shaped satellites, or CubeSats. At least 15 more are ready to go. Those already in orbit take pictures, collect information and send it back to the earth, just as regular satellites do.
But you might not even have to wait until you get to college to start designing and building your own satellite. A new program called KatySat aims to get teenagers to take part. Once kids understand what satellites can do, says Ben Yuan, an engineer at Lockheed Martin in Menlo Park, Calif., the kind of applications they’ll come up with may be countless.
"We’d like to put this technology in your hands," he tells kids. "We’re going to teach you how to operate a satellite. Then we want to turn it over to you as a sandbox for you to play in. We want you to take the technology into new directions that we haven’t thought of yet."
Education isn’t the only goal of CubeSats. Because these tiny, technology-filled boxes are relatively inexpensive to build and can be put together quickly, they’re perfect for testing new technologies might one day be used on major tasks.
The biggest challenge now is to find ways to bring the satellites back to the earth after a year or two. Otherwise, major highways of space junk could gradually increase as CubeSats become more common.
Nowadays, college and high school students are getting a chance to learn what it takes to explore in space. Someday--perhaps a lot sooner than you imagine--you might get to design, build and launch your own satellite. If you do, you’re sure to have fun. And you might also get crazy about science for life.
选项
A、need long start-up times
B、are low-cost and small-sized
C、are very hard to operate
D、collect more information in orbit
答案
B
解析
从第六段的这句话“Because these tiny,technology-filled boxes are relatively inexpensive to build”(因为这些小小的有技术含量的盒子相对来说建造起来不贵),可以看出答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3695507.html
相关试题推荐
Asweknow,itisnoteasytobuildasatellite.Buildingatraditionalsatel
Betweenthetworowsoftrees(stand)______theteachingbuilding.stands该句为倒装句型。
Ihopethey______thistallbuildingupbythetimeIcomebacknextyear.A、are
Therearesomegreatdifferencesbetweenatraditionalfamilyandamodernone.
Aliftiswonderful.It’salso(11)forus.Thinkaboutatallbuilding.Mayb
Aliftiswonderful.It’salso(11)forus.Thinkaboutatallbuilding.Mayb
Aliftiswonderful.It’salso(11)forus.Thinkaboutatallbuilding.Mayb
Therearetwospareroomsinthebuilding,______hasbeenprovidedwithair-condi
Agoodmany(build)______havebeenburntduringthefire.buildings本题中agoodm
We______buildingthebridgebytheendofnextmonth.A、arefinishingB、havefi
随机试题
WhimsicalNatureendowedtheMonctonregioninSoutheasternNewBrunswickwit
下列属于Ⅱ级易燃气体的是()。A.爆炸下限不小于10%,且不大于13%
下列属于火灾报警系统中“感觉器官”的是( )。A.火灾报警控制器 B.火灾探
白塞病常见的症状和体征,不发生在A.眼 B.皮肤 C.口腔 D.关节 E
依照《药品说明书规范细则(暂行)》,在中药说明书格式中,不含有A、【药理作用】
预后最差的肺癌类型是A:鳞癌 B:小细胞癌 C:大细胞癌 D:腺癌 E:
一般来说,在本国发行的债券通常以本国货币作为面值的计量单位;在国际金融市场筹资则
建设工程施工合同履行过程中,应由承包人承担损失的因素包括()。A.因承包人采购的
根据《建筑工程建筑面积计算规范》(GB/T50353-2013)规定,建筑物大
属于Ⅱ型超敏反应导致的疾病是A、接触性皮炎 B、新生儿溶血病 C、支气管哮喘
最新回复
(
0
)