老人消失在布帘后，"隐身衣"真的被造出来了？

一名老人举着一块塑料布，面朝镜头，展开，举过头顶。画面中，老人“消失”了，眼前只剩背景里的花草树木。连日来，一则主题为“大爷瞬间消失”的视频，引发网络关注。

多家媒体在转发这一消息时称，浙江大学研发成功国产“量子隐身衣”，可以类似魔法功能的“隐身”。近日，记者从浙江大学方面确认，尽管多年前就启动对于隐身技术的研究，但网传这一所谓“研究成果”与浙大无关。

隐身技术专家，浙江大学光电科学与工程学院教授马云贵表示，隐身技术目前在理论上完全可行，但具体实践仍困难重重，尤其要实现民用，还有很长的距离要走。

Earlier this month, it was reported that Professor Zhang Xiang from the University of California, Berkeley, has been tapped to take on the job as the University of Hong Kong's vice chancellor.

While opinions are mixed over Zhang's appointment, one thing that people can agree on is that invisibility cloaks are cool, so Zhang who masterminded the creation of the world's first “invisibility cloak,” gets points for that.

背景：伯克利华人科学家张翔即将出任港大新校长，他专门研究隐形材料技术，其代表作纳米隐身衣，利用名为「纳米天线」的微小黄金纤维，透过改变光线在物体上折射的方式，令肉眼无法侦测，曾被美国《时代》杂志列为2008年十大科学发现。

What he doesn't get points[1] for, we're afraid, is this super cool but fake video purporting[2] to be Zhang's invisibility cloak in action, which has gone viral on the mainland.

[1]earn/get/score brownie points：to get praise or approval for something you have done （因做…）得到赞许

I thought I could score some brownie points with my mother-in-law by offering to cook dinner.

我想如果我主动做晚饭，能得到婆婆的赞许。

[2]purport：to pretend to be or to do something, especially in a way that is not easy to believe 声称，标榜

They purport to represent the wishes of the majority of parents at the school.

他们声称自己代表了该校大多数学生家长的愿望。

The short video shows a random man walking through a park holding up an “invisibility cloak.”

According to Stand News, the clip has been shared with titles such as “Future University of Hong Kong vice chancellor invents invisible clothing.” The website also reported that in Hong Kong, the video has been shared many times over WhatsApp.

未来港大校长张翔发明的隐形衣？

However, some netizens managed to see through the video's claims of authenticity. The same video was also uploaded on other sites claiming to be an invisibility cloak made by professors at the Zhejiang University, Apple Daily reported.

ZJU表示：

We clearly needed more transparency on this. Mainland broadcaster CCTV said they spoke to film and television production professionals, who said the “invisibility cloak” was likely a piece of green fabric used for green screens.

OK, so it may not be the invisibility cloak we were hoping for — or an invisibility cloak at all — but one thing that is definitely not fake is Zhang's credentials[3].

[3]credentials：the abilities and experience that make someone suitable for a particular job or activity, or proof of someone's abilities and experience 资历，资格；资格证书，资质证明

All the candidates had excellent academic credentials.

所有候选人都具有优秀的学历证书。

In 2015, Zhang and his team developed a thin cloak that could wrap around 3D objects and create the illusion of invisibility.

This was achieved thanks to a breakthrough in research he made on metamaterials in 2008, a discovery that allows engineered material to manipulate and bend light in unnatural ways. It was named by Time magazine as one of the top 10 scientific discoveries of that year.

However, there is no hiding the fact that you cannot use this cloak to sneak into clubs and bars, the cloak is only able to mask microscopic objects.

As for the Zhejiang University? They also had their breakthroughs on the stealth technology[隐身/隐形技术] front: in 2013, researchers at the university created a “box of invisibility” that hides animals.