Scientists in China Develop "Invisibility Cloak"
中国科学家研制出“隐形斗篷”
Scientists in China claim to have developed an "invisibility cloak" with invisible material, which makes for a chameleon-like colour breakthrough. Molecular changes make the material appear to blend seamlessly with its environment. Chameleon and octopus rely on a similar method to camouflage. But how does it work? How can this material be used? Why is humanity so obsessed with “invisibility”?
中国科学家声称已经开发出一种用隐形材料制成的“隐身衣”。分子变化使材料看起来与环境无缝融合。变色龙和章鱼正是依靠类似的方法进行伪装。但它是如何工作的?这种材料如何使用?为什么人类如此痴迷于“隐形”?
近日,在一场科学活动上,中国科学院院士褚君浩介绍了“多种光学隐身方法的效果测试”,现场展示了利用特殊材料实现的“隐身术”。
褚君浩院士请工作人员手持一块面板,起初透过面板还可看到人物的下半身,但将这块材料旋转90度之后,褚君浩院士的下半身“消失不见了”,但能够清楚地看到人物身后的舞台场景。褚君浩院士表示:“未来,哈利·波特的隐形斗篷将成为衣柜里的日常用品。”
实验过程中实现隐身的原理是什么?隐身技术走入日常生活还要多久?
揭秘“消失的下半身”
北京交通大学物理科学与工程学院副教授陈征介绍,褚君浩院士实现下半身“隐身”的原理是柱镜光栅。所谓柱镜光栅,是指柱面的凸透镜,可以想象为把一个透明圆柱从中间劈成两半,其中半个就是柱透镜,这些柱透镜并排组合就形成了形状类似瓦楞纸的透明又有周期性的折射结构,这个结构就是光栅。
柱镜光栅实现隐身的原理并不复杂。比如,找一个圆柱形水瓶灌满水,这时水瓶就变成了凸透镜,在水瓶后面稍远位置放置一根筷子,当筷子与水瓶平行时,在成像上筷子就变得非常细。如果在光栅的每个柱镜后都放置这个与柱镜平行的物体,此时物体的完整图像就被拆成很多的细线,由于细线相对于光栅的宽度很小,因此非常模糊,不容易被注意。
实验中将薄膜板旋转90度,就是为了使柱镜与褚君浩院士的腿平行。而之所以能看到舞台背景,主要是因为背景里的横条纹。这些横条纹在成像后依然是个完整的条纹,因此较为醒目,也正是这些横条纹足以吸引注意力,才使得隐身效果更为突出。
以下是各国网友的评论:
Schminner
i have no need for an invisible cloak. people don't even know I exst.... sad
我不需要隐形斗篷。人们本来就不知道我的存在。伤心
shadowdweller-f7q
Magic is science we don't understand yet.
魔法就是我们尚不了解的科学。
sarak220
Absolutely. Everything is Magic.
当然。一切都是魔法。
Dangermonkey1000
Magic is supernatural power not science.
魔法是超自然的力量,它不是科学。
danaustria1056
In our country most of the time government budgets becomes invisible together with politicians they just reappear in the campaign period
在我国,大多数时候政府预算与政客一起消失,他们只会在竞选期间重新出现
atulagarwal2005
As fascinating it may sound, I have only one question, how does this cloth/material decide what to show and what to hide?
听起来很有趣,我有一个问题需要问,这种布料和材料是如何决定展示什么和隐藏什么?
bdpat100
Damn the PLA might already be in Taipei if they have invisible clothes
该死的,如果解放军有隐形衣,他们可能已经进入台北了
ultranoobpromaxInfinity
Well well I have some plans if I get a real invisibility cloak
好吧,如果我能得到一件真正的隐形斗篷,我会有一些用途
chocomalk
This was already invented years ago, it just bends light around the fabric and it's not able to move and only works sometimes etc.
几年前就发明出来了的,只是把光线弯曲在织物周围,不能移动,偶尔能用。
shinji1264
Chinas future is looking very bright, it's amazing what you can do without diversity and bureaucracy slowing your country down
中国这个国家未来非常有前途。看来官僚主义束缚,不会那么多样化,能取得的成就太惊人了。
aboucard93
Haha except China is very diverse. China has 56 ethnic minorities. The unofficial record is over 100. Not to mention the large number of foreigners who live in China.
哈哈,中国也是非常多样化的。中国有56个民族。非官方记录超过100个民族。更不用说有大量外国人居住在中国了。
A-Wesker-5
I'm...pretty sure I already have seen this years ago.
我很确定几年前就看过这个了。
German_shepherdOP
Me too ..Almost 5-7 years ago
我也是。大约5-7年前就看过了
av3347
The application in Military is concerning
可以应用在军事上
Architha_V
This would be very helpful for women in India to ensure their safety
这个可以大大加强印度女性的安全
ghaninani6910
Hats off china
向中国致敬!
jagrutipatel6423
Challenging and Magical world.
充满挑战和魔力的世界。
UP-sn8qp
Now some people will come from india and comment - We already have invented this 5000 years ago..
现在,一些印度人会说——我们早在5000年前就发明了这个。
Beru700
Chinese lives 2050 .not 2024
中国人已经活在2050年,不是2024年
chorlauheung4920
We can now become our own magicians!!
我们现在自己就是魔术师!
rajpachori
Dont know why its difficult to build invisibility cloak in the age of AI. You build a cloak with embedded chip, program it for making humanly objects behind it invisible. May not be that straight forward but shouldnt be that difficult too.
现在是人工智能时代,为什么还很难造出隐形斗篷。你用嵌入式芯片制造一件斗篷,对它进行编程,让后面的人类或物体隐形。可能没有那么容易,但也不应该那么难吧。
lda
It's used in US by some traffic police on roads...China was not the first to create it.....I watched it being advertised 2 weeks ago
在美国,一些交通警察在道路上使用这个东西。中国并不是第一个创造隐形斗篷的国家……我两周前看到了它的广告
slogeswaran1
If they have this tech ,they wouldn't have shown this to public
如果他们真的有这项技术,他们不会向公众展示的
roarshackstudios5193
I recall Japan coming out with something similar awhile ago.
我记得日本不久前也推出了类似的东西。
juneberry8284
This is so amazing
这太神奇了
nagendrachemuturi9145
This was achieved in USA several years ago
美国几年前就有了
PSX247
Yes it's called a hollywood movie.
是的,在好莱坞电影上看到的
rhomeanimation
So cool.Big respect to the scientist.Genuis
太酷了。我佩服中国科学家。你们是天才
AnonymousAnonymous-dc3jm
If you go invisible you end up blind!
如果你隐形了,你最终会失明!
wooterrackz2699
that's insane
这太疯狂了
asdfgh-uh6cy
Why would they reveal this technology to the public, when it was obviously developed for military purposes?
既然这项技术显然是为军事目的开发的,他们为什么要向公众透露呢?
nthonybatoski5244
I am already invisible for everyone even my mother
我已经是隐形的,大家都看不到我,即使是我的母亲也看不到
scamexpose123
are these Chinese still alchemists? Have heard that some of their earlier dynastic kings wanted to be immortal..
这些中国人是炼金术士吗?听说他们以前的皇帝想长生不老。
kuyaz01
I have one before. But I can't find it now, It's invisible.
我以前有一件这样的隐形斗篷。现在找不到它了,它是隐形的。
Marie-jb9cr
wooow sooo coool!! I wanna play hide and seek using this with my toddler
哇塞,太酷了!我想和孩子一起玩躲猫猫
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