Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)

“The Tonight Show” host Jimmy Fallon, center, exits the water during the Chicago Polar Plunge, Sunday, March 2, 2014, in Chicago. Fallon joined Chicago Mayor Rahm Emanuel in the event. (Photo by Andrew A. Nelles/AP Photo)

Fashion enthusiast Sophie Cochevelou poses for a portrait during London Fashion Week in London, Britain, September 15, 2018. (Photo by Hannah McKay/Reuters)

American media star Kourtney Kardashian kisses American musician Travis Barker to promote her new Lemme vitamins in the second decade of October 2022. (Photo by kourtneykardash/Instagram)

American social media personality Addison Rae is seen on January 10, 2023 in Los Angeles, California. (Photo by Rachpoot/Bauer-Griffin/GC Images)

A drag performer dances at the end of the “Rally for Our Rights”, ahead of the 2023 Wisconsin Supreme Court election, outside the Wisconsin State Capitol in Madison, Wisconsin, U.S., April 2, 2023. (Photo by Evelyn Hockstein/Reuters)

Scottish actress Karen Gillan (L) and guests attend the Guardians of the Galaxy Vol. 3 World Premiere at the Dolby Theatre in Hollywood, California on April 27, 2023. (Photo by Rich Polk/Getty Images for Disney)

Lucha Libre wrestlers perform during the Lucha VaVoom spectacle “Cinco de Mayan” at The Mayan theater in Los Angeles, California, USA, late 04 May 2023 (issued 05 May 2023). The Lucha VaVoom presents Lucha Libre wrestling spectacles and mixes them with burlesque show elements. (Photo by Caroline Brehman/EPA/EFE)