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)

“John Constables's «The Hay Wein» meets «Bender» from «Futurama»”. (Photo and caption by Dave Pollot/Caters News)

“The Wild Animal Sanctuary is a U.S. organization that specializes in rescuing and caring for large predators which are being ill-treated, for which their owners can no longer care, or which might otherwise be euthanized. Created in 1980, The Wild Animal Sanctuary is situated on 720 acres (291 ha) of grassland near Keenesburg, Colorado North of Denver, and has helped over 1,000 animals since it first opened. As of 2010, it was home to over 290 animals”. – Wikipedia

Photo: Rescued brown and black bears feed at The Wild Animal Sanctuary on October 20, 2011 in Keenesburg, Colorado. (Photo by John Moore/Getty Images)

A woman films with her phone the incineration of packages of cocaine, part of a high seas drug seizure of 135 bundles by Salvadoran Naval Force, at a police base in Ilopango, El Salvador, November 29, 2021. (Photo by Jessica Orellana/Reuters)

Maltese singer Emma Muscat attends the turquoise carpet of the 66th Eurovision Song Contest at Reggia di Venaria Reale on May 08, 2022 in Turin, Italy. (Photo by Stefania D'Alessandro/Getty Images)

Amy Rimmer, Research Engineer at Jaguar Land Rover, demonstrates the car manufacturer's Advanced Highway Assist in a Range Rover, which drives the vehicle, overtakes and can detect vehicles in the blind spot, during the first demonstrations of the UK Autodrive Project at HORIBA MIRA Proving Ground in Nuneaton, Warwickshire on Friday October 21, 2016. (Photo by Fabio De Paola/PA Wire)

Libyan leader Muammar Gaddafi attends the inauguration ceremony of Jacob Zuma on May 9, 2009 in Pretoria, South Africa. Jacob Gedleyihlekisa Zuma is South Africa's fourth President since the end of apartheid. (Photo by Foto24/Gallo Images/Getty Images)