Taiwanese-American performer Nymphia Wind arrives for the 76th annual Emmy Awards ceremony held at the Peacock Theater in Los Angeles, California, USA, 15 September 2024. The Emmys celebrate excellence in national primetime television programming. (Photo by Allison Dinner/EPA/EFE)

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)

Thailand's Puttita Supajirakul is down on the court after a point during a women's doubles badminton match against the Netherlands at the 2016 Summer Olympics in Rio de Janeiro, Brazil, August 11, 2016. (Photo by Kin Cheung/AP Photo)

A monkey jumps from a branch at Yangon Zoological Gardens in Yangon, Myanmar, 06 April 2016. Yangon Zoological Gardens (Yangon Zoo) is the oldest and second largest zoo in Myanmar. (Photo by Lynn Bo Bo/EPA)

A Sadhu, Hindu holy person, prepares himself by smearing ashes on his body during the Maha Shivaratri festival at the Pashupati Temple in Kathmandu, Nepal, 11 March 2021. The Maha Shivratri festival, which is celebrated on 11 March, sees Hindu devotees, from across the country and neighboring India, gather to celebrate the birthday of Lord Shiva, the Hindu god of creation and destruction, by offering special prayers and fasting. (Photo by Narendra Shrestha/EPA/EFE)

Actress with the Donbass Opera Theatre prepares to perform Eugene Onegin in Donetsk, Ukraine, Saturday, February 7, 2015. For the few dozen spectators that turn up, the weekly performances at the city's opera house serve as a respite from the war raging outside between Russian-backed separatists and Ukrainian government forces. (Photo by Petr David Josek/AP Photo)

Nikolai Vasilyev, 62, dressed as Father Frost, Russian equivalent of Santa Claus, water-skis along the Yenisei River outside Siberian city of Krasnoyarsk, Russia, December 10, 2015. Vasilyev, a teacher of the Krasnoyarsk Aerospace Academy, constructed the self-made water skis to travel on the water surface. The skis are made of plastic foam and the sticks are designed to propel him forward. (Photo by Ilya Naymushin/Reuters)

A couple share a kiss at the “Purple Rain” installation at the Lycée Jacques-Decour on August 02, 2020 in Paris, France. Part of Festival Paris l'Eté, the installation by Pierre Ardouvin is a tribute to the song by Prince and allows visitors to role play while equipped with umbrellas and accompanied by the song. (Photo by Kiran Ridley/Getty Images)