Yogis and street performers have been simulating levitation with nifty contraptions forever. They appear to be held aloft via nothing but their preternatural mental prowess. But are really enjoying the benefits of basic physics just like the rest of us when we use a chair. However, just because it’s perfectly explainable doesn’t mean it isn’t nifty. I’m especially impressed by this 2-person version and am still trying to work out how exactly the chair they’re using is shaped at the base.

“The Africanis is a landrace of South African dogs. It is believed to be of ancient origin, directly descended from hounds and pariah dogs of ancient Africa, introduced into the Nile Valley from the Levant. The Swahili name for the breed is umbwa wa ki-shenzi meaning common or mongrel or “traditional dog”. Africanis is also an umbrella name for all the aboriginal dogs in southern Africa”. – Wikipedia. Photo: Africanis 18. Murraysburg, Western Cape, May 10, 2010. (Photo by Daniel Naudé)

People walk on a sightseeing platform in Zhangjiajie, Hunan Province, China, August 1, 2016. China has opened a 100-metre-long glass skywalk stretching around a cliff on the side of the Tianmen Mountain. The skywalk provides a view of a 300-metre drop and overlooks Tongtian Avenue, a mountain road with 99 turns that snakes up the mountain. When translated in English, it means “Avenue to the Sky”. (Photo by Reuters/Stringer)

Everyone wants to get something for nothing - whether it's a lucky upgrade that means you can turn left when you get on a plane instead or heading off into the economy seats, or even getting a few extra features thrown in for free when you buy a new car.

As some of the sharpest businesses around, no-one understands this quite as well as casinos and that's why they all have a system that they call comps. It's short for "complimentary offers" and these are special treats specially designed to reward you for your loyalty to the casino in question. They're basically bonuses.

Two holy men with a decorative faces and headdresses, taken in Kathmandu, Nepal. Wandering through the cities and forests of Nepal are the holy men, or Sadhus, who have left all materialistic pleasures behind to live a life devoted to God. Their appearances vary from brightly coloured face paints, and decorations, to minimalistic practical clothing, but they all represent the fundamental values and meanings of Hinduism. Danish photographer Jan Moeller Hansen visited the ancient capital city of Kathmandu between 2013 and 2016 and documented the mysterious holy wanderers. (Photo by Jan Moeller Hansen/Barcroft Images)

Academy Award-winning actor and comedian Robin Williams has died at 63. The cause of death is thought to be suicide by asphyxiation.

The official name for this tiny speck of land – the size of 12 football pitches – is Hashima, but few call it that. In English, its most commonly used name means “Battleship Island” and, viewed from a certain angle offshore, its silhouette is uncannily dreadnought in nature. It was a mining facility until 1974, when it was abandoned to the elements, before partially reopening as a tourist attraction in 2009. Photo: A decades-old television. (Photo by Mark C. O'Flaherty)