Japan's Shingo Kunieda celebrates with trophy after winning the men's wheelchair tennis final against Argentina's Gustavo Fernandez at the French Open in Paris on June 4, 2022. (Photo by Gonzalo Fuentes/Reuters)

A tattoo showing the Olympic rings is pictured on the leg of Mexico's Joana Jimenez Garcia during the Women Solo Technical Preliminaries, at the FINA World Championships, in Budapest, Hungary on June 17, 2022. (Photo by Marton Monus/Reuters)

Anita Alvarez of the U.S. receives medical attention during the women's solo free final during FINA World Championships at Alfred Hajos Swimming Complex in Budapest, Hungary on June 22, 2022. (Photo by Lisa Leutner/Reuters)

Gold medalist Shelly-Ann Fraser-Pryce of Jamaica celebrates after the Women's 100m Final during the 18th edition of the World Athletics Championships at Hayward Field in Eugene, Oregon, United States on July 17, 2022. (Photo by Aleksandra Szmigiel/Reuters)

Bia Zaneratto of Brazil celebrates after scoring the second goal of her team during the Women's CONMEBOL Copa America 2022 Semi Final match between Brazil and Paraguay at Estadio Alfonso Lopez on July 26, 2022 in Bucaramanga, Colombia. (Photo by Mariana Greif/Reuters)

Kate O'Connor of Team Northern Ireland celebrates during the Women's Heptathlon High Jump on day five of the Birmingham 2022 Commonwealth Games at Alexander Stadium on August 02, 2022 in the Birmingham, England. (Photo by Matthew Lewis/Getty Images)

American model Zion Moreno attends the Netflix film “White Noise” and opening ceremony red carpet at the 79th Venice International Film Festival on August 31, 2022 in Venice, Italy. (Photo by Andreas Rentz/Getty Images for Netflix)

Luis Hernan was always curious about how wireless technologies like radio are transmitted through the air. So after finishing up his studies in architecture, computer science, and design, Hernan decided to research these invisible signals through a PhD at Newcastle University. Hernan set up a system that turned the wireless signals around him into colourful, ghostlike images using long-exposure photography, allowing people to see the strength of the signals around them. (Photo by Luis Hernan)