(Original title: Zheda denied R&D "Invisibility Clothing": Technically Impossible)
Recently, an online video surfaced showing a man seemingly disappearing when holding up a plastic sheet. Some netizens claimed the university involved was Zhejiang University, sparking widespread attention on social media.
The video shows an elderly man standing in front of a tree, then raising a transparent cloth over his body. As he lifts it, his lower half vanishes, leaving only the top part visible, with the background clearly visible behind him. When he lowers the cloth, he reappears. This has led to speculation about the existence of “invisibility clothing†or even “quantum stealth technology.â€
However, Zhejiang University has officially denied any involvement in such research. Experts from the university stated that the video is likely a post-production edit using keying techniques, not real invisibility. According to Ma Yungui, a professor at Zhejiang University’s School of Optoelectronics Science and Engineering, while the concept of invisibility is theoretically possible, practical implementation remains extremely challenging.
Ma explained that current technology cannot achieve true invisibility for humans. The video, in his view, is more likely a product of digital editing rather than genuine scientific breakthrough. He also clarified that there is no such thing as “quantum invisibility clothing†in academic literature. The term itself is misleading and not recognized in scientific circles.
Zhejiang University had previously conducted research on stealth technology, but the recent claims linking their work to “invisibility clothing†are unfounded. The university emphasized that no such project exists and that the video circulating online has no connection to their research.
Some experts believe the video might be similar to earlier ones uploaded by foreign users, where a green or blue cloth was used to create the illusion of invisibility through post-editing. The technique is commonly used in film and television production.
While the idea of invisibility captivates the imagination, the reality is far from what the videos suggest. Scientifically, achieving full invisibility would require controlling light in ways that are currently impossible. Even the most advanced research in this field is still in its early stages.
According to Ma Yungui, the concept of “stealth†in science refers to making objects undetectable by radar or other sensors, not necessarily making them completely invisible to the human eye. Current progress includes making certain materials less detectable, but full invisibility remains a distant goal.
In terms of applications, stealth technology is primarily used in military contexts, such as in aircraft or ships. Civilian use is still theoretical and not yet feasible. While the idea of invisibility clothing may seem exciting, it is more science fiction than reality at this point.
In summary, while the internet buzz around “invisibility clothing†is intriguing, the truth is that no such technology exists today. Zhejiang University has made clear that the video is not related to their research, and experts agree that the concept is still far from being realized.
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