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 member of the pro-government “red shirt” movement attacks a Buddhist monk outside the National Anti-Corruption Commission office in Nonthaburi province, on the outskirts of Bangkok March 24, 2014. Members of the movement attacked the monk after he shouted complaints to the group blocking a road near the National Anti-Corruption Commission. (Photo by Chaiwat Subprasom/Reuters)

Zhao Deli waves as he pilots his self-made “flying scooter” in Dongguan, Guangdong Province, China, 12 August 2018 (issued 16 August 2018). Inspired by a cartoon he watched as a child, Zhao Deli sold off his apartment in pursuit of his dream of building a flying scooter. (Photo by Aleksandar Plavevski/EPA/EFE)

The photography of Art Wolfe covers the globe, capturing landscapes, wildlife, and cultures from every continent; here he talks through a selection of his favourite images. Art Wolfe is an American photographer and conservationist. His photographs have been noted by environmental advocacy groups for their “stunning” visual impact. Here: Snowy owlets (Bubo scandiacus), Arctic National Wildlife Refuge, Alaska, USA. (Photo by Art Wolfe/Art Wolfe Stock)

If you love dirt bikes and live in England, then there is no doubt that you’ve heard about RHL Weston Beach Race that takes place in Weston-super-Mare in Somerset. In the beginning, this race was organized by a few avid bikers sponsored by local businessmen. However, after a while, this event has gained traction, and now as many as one hundred thousand people come to take part in this race. In order to accommodate all the contestants, a whole beach in converted into one gigantic race track. The noise created by such a mass of dirt bikes can be heard for miles; however, this is a small price to pay for all the fun the people are having.

Harnaam Kaur has polycystic ovary syndrome, which can cause excessive hair growth. She was just 11 years old when a beard started to appear on her face and the hair quickly spread to her chest and arms.

When Stu Thomson (Cut Media) and Danny MacAskill approached us (Santa Cruz Bicycles) with the idea of being the first to tackle the Black Cuillin ridge on a bicycle, we were in from the start. Located on the Isle of Skye (Danny’s home on the west coast of Scotland) the ridge is infamous for its jagged trails, wild weather and dramatic climbing route up the “Inaccessible Pinnacle”.