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
2023-10-07
27
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/3079543.html
相关试题推荐
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
On21st-centurycampuses,isthereroomstillfortraditionalliteraturesuc
Thisisoneofthehighestbuildingsthat______inourcity.A、areeverbuiltB、
[originaltext]M:WhereistheNo.3teachingbuilding?W:Goaheadandmmright
随机试题
[originaltext]M:Howisthemovielastnight?W:TheworsttendollarsI’veeve
某公路建设项目,路面为沥青混凝土路面。业主委托一监理单位进行施工阶段的监理,并分
关于交工验收阶段安全监理中路面修复作业的说法,错误的有( )。A.作业人员必须穿
下列关于混凝土工程量计算规定的说法不正确的是()。A.设计工程量中应计入混凝土
下列关于部级联网售票平台与省级联网售票系统之间的关系的说法中,错误的是()。A
2000年我国卫生工作发展目标中。每千人口的医师人数为()A.1.2人 B.0
多发性骨髓瘤引起蛋白尿的特点是( )。A.肾小球性蛋白尿 B.肾小管性蛋白尿
关于泛素化的叙述,错误的是 A.蛋白质的降解需多次泛素化B.泛素化需消耗能量
(2017年真题)关于行政复议参加人的说法,正确的是()。A.被申请人可以委托
(2016年真题)现阶段电话通信系统安装时,用户交换机至市电信局连接的中继线一般
最新回复
(
0
)