A man walks near a artwork of Italian artist Dario Agrimi entitled “ascesa” during a press preview of the first edition of “Roma Arte in Nuvola”, the international fair of modern and contemporary art in Rome on November 18, 2021 at the Roma Convention Center “La Nuvola”. (Photo by Tiziana Fabi/AFP Photo)

Rikkie Valerie Kolle, a transgender woman who was crowned Miss Netherlands, puts on her makeup in Voorthuizen, Netherlands on July 12, 2023. (Photo by Piroschka van de Wouw/Reuters)

Miss Seychelles Gabriella Gonthier walks through the crowd with fellow contestants for the start of the final round of the 71st Miss Universe Beauty Pageant in New Orleans Saturday, January 14, 2023. (Photo by Gerald Herbert/AP Photo)

On the morning of the October 4, 2025, the second day of the Chuseok holiday, a lenticular cloud resembling an unidentified flying object (UFO) appeared in the northeastern sky as seen from the Healing Forest in Hogun-dong, Seogwipo-si, Jeju-do, creating a spectacular sight. (Photo by Newsis)

A dog attends the Pet Gala fashion show at AKC Museum of The Dog, Monday, May 20, 2024, in New York. (Photo by Charles Sykes/Invision/AP Photo)

A Palestinian man takes a selfie picture next to a camel at a livestock market in the West Bank city of Hebron on August 9, 2019, as muslims prepare for the Eid al-Adha celebrations. Known as the “big” festival, Eid Al-Adha is celebrated each year by Muslims sacrificing various animals according to religious traditions, including cows, camels, goats and sheep. (Photo by Hazem Bader/AFP Photo)

Mates Jimi Hunt and Dan Drupstee dug the 650m slippery slide on a property at Helensville, northwest of Auckland and opened it this weekend as part of a festival to help combat depression.

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.