手机APP下载

您现在的位置: 手机彩票app > 在线广播 > VOA慢速英语 > VOA慢速-时事新闻 > 正文

VOA慢速英语(翻译+字幕+讲解):折纸工艺启发太空探索

来源:可可英语 编辑:emma    |  可可官方微信:ikekenet
 下载MP3到电脑  批量下载MP3和LRC到手机
加载中..
#BiBct=,+7K

X22Bj+gQdMiE-2YFk

Since he was eight years old, Robert Salazar has been making artistic creations from folded paper.
Now, he is taking his love of origami to a different place: outer space.
Salazar works with the Jet Propulsion Laboratory of the United States space agency NASA. He says that ideas from origami can help design devices for research and exploration:
Origami offers the potential to take a very large structure, even a vast structure, and you can get it to fit within the rocket, go up, then deploy back out again. So it greatly magnifies what we are capable of building in space.
Researchers are using ideas from origami on several space agency projects.
Manan Arya is a technologist at the Jet Propulsion Laboratory. He is working on a project called Starshade. The project's goal is to fit a large object into a rocket. Once the rocket reaches the correct point in space, the Starshade opens like a flower. This large flower shape is meant to block light to permit a space telescope to better see areas close to bright stars.
Starshade, Arya says, can be used to look for planets that orbit other stars.
Seeing an exoplanet next to its parent star is like trying to image a firefly next to a search light, the searchlight being the star. Starshade seeks to block out that starlight so you can image a really faint exoplanet right next to it.
Researchers are also using ideas from origami to design a robot and a special antenna for satellites.
The robot is called the Pop-up Flat Folding Explorer Robot, or PUFFER.
It can fold itself flat to get into small spaces. Salazar says the robot can explore environments "otherwise inaccessible" to a robot. It could even be used to explore cave systems on our own planet, he adds.
Antennas on satellites capture and send communications signals.
Arya notes that the idea behind the special antenna's design is to pack it into very small satellites that are known as CubeSats. Arya says it is very useful to be able to fit large antennas into a small space:
The bigger the antenna you have, the more gain your antenna has, so it is useful to have a big antenna that gets packaged into this tiny space that unfolds out to be a large antenna. The biggest CubeSat antennas we have right now are about half a meter.
NASA's Jet Propulsion Laboratory origami-based technologies have a graceful beauty. In origami, Salazar said, art, science and engineering only have small differences.
I'm John Russell.

yFOD~r*PYeZvU^,sT^6O

7y87AP&^8^Wgv3.Xg&8tB&5[*k)]AMkqm%730&_+%0CH~-;B1di

重点单词   查看全部解释    
antenna [æn'tenə]

想一想再看

n. 触角,天线,感觉,直觉

联想记忆
propulsion [prə'pʌlʃən]

想一想再看

n. 推进,推进力

联想记忆
graceful ['greisfəl]

想一想再看

adj. 优雅的

 
firefly ['fairflai]

想一想再看

n。 萤火虫

联想记忆
potential [pə'tenʃəl]

想一想再看

adj. 可能的,潜在的
n. 潜力,潜能

 
vast [vɑ:st]

想一想再看

adj. 巨大的,广阔的
n. 浩瀚的太

 
faint [feint]

想一想再看

n. 昏厥,昏倒
adj. 微弱的,无力的,模

 
artistic [ɑ:'tistik]

想一想再看

adj. 艺术的

联想记忆
fold [fəuld]

想一想再看

n. 折层,折痕
vt. 折叠,包,交叉,拥抱

 
permit ['pə:mit,pə'mit]

想一想再看

n. 许可证,执照
v. 允许,许可

联想记忆

发布评论我来说2句

    特别推荐

      ·
      ·
      ·
      ·

    英语学习推荐

    • 英语听写训练
      听写强化训练系统有听写比对,按句停顿,中文翻译、听写错词提示等特色功能.
    • 可可英语微信:ikekenet
      关注可可英语官方微信,每天将会向大家推送短小精悍的英语学习资料..

    科学美国人60秒

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。
    彩票开奖结果 彩票app 彩票购买 秒速彩票投注 秒速彩票投注 彩票app 秒速彩票投注 网上彩票购买 网上彩票购买 彩票开奖查询