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)

Actress Bai Ling poses for a picture in front of St. Basil's Cathedral at the Red Square in Moscow, Russia, July 1, 2015. (Photo by Ivan Burnyashev/Reuters)

Villagers play traditional games as they take part in a Chyrachka rite during the Shrovetide celebration in the village of Tonezh, some 280 km of Minsk, on March 10, 2019. Chyrachka is a kind of birds that live in this area. (Photo by Sergei Gapon/AFP Photo)

A female bodybuilder apples oil to another performer backstage before an amateur competition in the Israeli city of Dimona, in this April 3, 2014 file photo. (Photo by Finbarr O'Reilly/Reuters)

A resident reacts as a health worker collects a swab sample to test for the Covid-19 coronavirus in Colombo on July 27, 2021. (Photo by Ishara S. Kodikara/AFP Photo)

Models walk the runway for Sergio Hudson during New York Fashion Week: The Shows at Spring Studios on February 13, 2022 in New York City. (Photo by Noam Galai/Getty Images for NYFW: The Shows)

Kirsty Paterson appears as herself in Willy’s Candy Spectacular at the Pleasance Dome on August 15, 2024 in Edinburgh, Scotland. Police eventually shut down the 2023 Willy's Chocolate Experience event in Glasgow last year after disappointed attendees spent £35 on tickets only to be met with a sparsely decorated warehouse and a handful of actors. The event garnered worldwide attention and has now been made into a show “Willy's Candy Spectacular” for the Edinburgh Fringe, featuring Kirsty Paterson the original “Sad Oompa Loompa”. (Photo by Jeff J. Mitchell/Getty Images)

Professor Xie Yong works on an art installation of a beaver, which is made out of plastic and around 300,000 needles, in Shenyang, Liaoning province, July 23, 2013. The needles, according to Xie, represent the pain felt by animals when their fur is taken off to produce clothing. (Photo by Reuters/Stringer)