If we were to burn NH4Cr2O7 with HgSCN in the Dark Ages in Europe and show it to anyone, it is us who would be burning next on a fiery cross of Inquisition. And it’s no wonder, since this experiment produces a truly marvelous result. At first, as you ignite the mixture of NH4Cr2O7 and HgSCN, all you can see is that it is slowly burning with a reddish flame. After a while, however, a crater is formed in the middle of the burning pile, and then, suddenly, tentacle-like appendages start sprouting from the burning mixture. And you can almost hear the scream of the mad occultist – “Come forth, Kraken! Come forth!” But of course, this is simply a chemical reaction that is called the "Pharoah's Serpent". It was also often sold in firework stores until people realized that it was toxic.

AFP presents a photo essay on professional wrestler Gia Scott shot by photographer Jim Watson over several months in 2018. Kierra Scott – better known by her stage name Gia – is a rising star in the US pro wrestling scene. This month, the 19-year-old became the youngest ever female champion of the MCW wrestling league in Maryland. Here: Professional wrestler Gia Scott (R) tries to break free from the grip of professional wrestler Aria Palmer (L) during Autumn Armageddon 2018 in Galena, Maryland on October 6, 2018. (Photo by Jim Watson/AFP Photo)

“Environmental Migrants: The Last Illusion” by photographer Alessandro Grassani, documents the life of people in Kenya, Mongolia and Bangladesh who migrate to escape environmental stresses to the city of their own countries in hopes for a better life. Here: Asia, Mongolia, March 27, 2011. A view of Ulaan Baator over the shoulder of a slumbering drunk. Alcoholism is a huge problem in the city, home to almost half of Mongolia's people. The capital's population has doubled in the past two years. High levels of unemployment and poverty await herders who abandon rural areas and arrive in the city, illiterate and untrained in any skills necessary for urban jobs. (Photo by Alessandro Grassani)

Ethnic Cham Muslim people pass the time near their boats on banks of Mekong river in Phnom Penh July 29, 2013. About 100 ethnic Cham families, made up of nomads and fishermen without houses or land who arrived at the Cambodian capital in search of better lives, live on their small boats on a peninsula where the Mekong and Tonle Sap rivers meet, just opposite the city's centre. The community has been forced to move several times from their locations in Phnom Penh as the land becomes more valuable. They fear that their current home, just behind a new luxurious hotel under construction at the Chroy Changva district is only temporary and that they would have to move again soon. (Photo by Damir Sagolj/Reuters)

Internet is filled to the brim with cat pictures and cat videos. It seems that cats became the symbol of the internet. For some unknown reason, cat owners simply love taking pictures of their beloved kitty-cats and posting them on the internet for all to see. Everyone’s cat is special; however, some are more special than others. Take Garfi for example. As soon as you catch his menacing stare, you immediately realize the reason why this kitty became popular. The look he gives you would send shivers down anybody’s spine. Yeah, the look Garfi has is somewhat special, but nothing will compare to the “facial expression” of Tard – the Grumpy Cat! A look that screams – “All is lost! Life has no meaning…”. (Photo by Hulya Ozkok)

When you look at the pictures created by Stacey Baker, you immediately think that these photos must have been staged by the photographer to convey some deep meaning. In reality, however, Stacy created her new series called “CitiLegs”, which has about 300 pictures of female legs, by asking passing girls and women in Manhattan, New York if she could photograph their legs. And that is when the realization hits you – “Some people actually dress like that!” What kind of a person would wear neon-green shorts over orange leggings with leopard-patterned boots, the toes of which are completely torn? Yes, there is a possibility that such a person might be insane; however, there are just too many “crazy” photos in this series! (Photo by Stacey Baker)

In this August 17, 2016, photo, from left to right, Chhering Chodom, 60, Tashi Yangzom, 50, Lobsang Chhering, 27, and Dorje Tandup, 58, drink milk tea on the side of the road. For centuries, the sleepy valley nestled in the Indian Himalayas remained a hidden Buddhist enclave forbidden to outsiders. Enduring the harsh year-round conditions of the high mountain desert, the people of Spiti Valley lived by a simple communal code – share the Earth's bounty, be hospitable to neighbors, and eschew greed and temptation at all turns. That's all starting to change, for better or worse. (Photo by Thomas Cytrynowicz/AP Photo)

Tatyana Abramova, 33, plays with her home fox Plombir at her countryside house outside Siberian city of Novosibirsk on September 12, 2020. The official start of the Soviet experiment to better understand the domestication of animals by humans began in 1959, and was initiated by geneticists Dmitri Beliaiev and Lioudmila Trout on a farm in Akademgorodok, the scientific center of excellence in Siberia. Their primary objective was to domesticate foxes, to understand how the ancestor of wolves, another canine, evolved into a loyal and loving dog. And understand what this domestication tells us about the genetic evolution of species. (Photo by Alexander Nemenov/AFP Photo)