WiFi: Circling the beam like a ghost

British college students draw Wi-Fi signal maps, circling beams like ghosts. Luis Hernan, a PhD student at Newcastle University, has drawn a series of images of the Louise Henan of Wi-Fi connections to the invisible network around humans, according to the Daily Mail of the UK. Henan first used custom instruments to take pictures of Wi-Fi signals to show them. The device continues to scan the Wi-Fi network and then turns the signal strength into a color light-emitting diode. The Henan finally obtains the winding curly colored light stripe. Henan said he was fascinated by the idea of seeing the hidden wireless network around humans. "I call these images ghosts because, for us, wireless networks are like ghosts," he said. Although they exist, they are invisible to the naked eye. In fact, I'm curious that people are increasingly reliant on wireless networks but can't see it, and I want to find a way to show the wireless network around us and show how it changes. "The wireless network is very fragile and unstable, and it combines our digital technology to form a way of interacting in the digital world," says Henan. Many seemingly insignificant things, such as walking around the room, can interfere with it, causing the force field to reshape. If you close the wrong door, the bedroom will become a dead end of the wireless network. Henan also developed a software that can be downloaded for free, allowing people to see the strength of the Wi-Fi network around them. "I want someone else to get involved and use the software to create their own Wi-Fi signal map," he said. Let's take a look at the following, like a phantom WiFi signal: