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)

A girl walks an Akita-inu dog dressed in a military uniform in Vladivostok, Russia on April 9, 2019. (Photo by Yuri Smityuk/TASS)

Shanina Shaik fuels “Endless Desire” in a new campaign for jewelry designer Jacquie Aiche on October 5, 2023. The stunning model poses seductively in low-cut lingerie and topless under a robe as she showcases the lates handmade fine jewelry from the LA-based designer in the “Endless Desire” campaign. (Photo by Jacquie Aiche/The Mega Agency)

A girl with white powder on her face celebrates the Songkran holiday which marks the Thai New Year in Bangkok, Thailand, on April 14, 2024. (Photo by Chalinee Thirasupa/Reuters)

Sofia Raffaeli, of Italy, performs during the individual all-around final of the European Championships in Rhythmic Gymnastics at the Unibet Arena, Tallinn, Estonia, Saturday, June 7, 2025. (Photo by Sergei Grits/AP Photo)

Actor Kurt Tocci leaps for photographers at the premiere of the AMC series “The Walking Dead: The Ones Who Live”, Wednesday, February 7, 2024, in Los Angeles. (Photo by Chris Pizzello/AP Photo)

A seafood vendor moves a giant swordfish to his stall at a market in Qingdao, Shandong province, China, September 12, 2015. The 4.1-metre-long (13.5 feet) swordfish, weighed about 309.5 kilograms (682 lbs), was caught by local fishermen on Friday, local media reported. (Photo by Reuters/Stringer)

Dakota Johnson flashes a cutout of Pedro Pascal during the premiere of Materialists in New York, US on June 7, 2025. (Photo by Stephen Lovekin/Rex Features/Shutterstock)