Spain's Oscar Husillos (R) passes the baton to Spain's Eva Santidrian (L) in the mixed 4x400m relay heats during the World Athletics Championships at Hayward Field in Eugene, Oregon on July 15, 2022. (Photo by Andrej Isakovic/AFP Photo)

An ethnic Shan artist performs during a ceremony to mark the 8th anniversary of the Nationwide Ceasefire Agreement (NCA) at the Myanmar International Convention Center in Naypyitaw, Myanmar, Sunday, October 15, 2023. (Photo by Aung Shine Oo/AP Photo)

A model presents creations by Indian designers Paras and Shalini during the Fashion Design Council of India (FDCI) Lakme Fashion Week (LFW) in Mumbai, India, 15 March 2024. The FDCI x Lakme Fashion Week runs from 13 to 17 March 2024. (Photo by Divyakant Solanki/EPA)

“Ninots” or giant figures, depicting doves of peace fighting over an olive branch by artist Escif, are displayed in the streets before being burned during the traditional annual Fallas festival, in Valencia, Spain, on March 15, 2024. (Photo by Eva Manez/Reuters)

Anda Oliveira, 34, enjoys a waterfall in the Tijuca National Park, one of the world's biggest urban forests, marking the World Water Day in Rio de Janeiro, Brazil on March 15, 2024. (Photo by Pilar Olivares/Reuters)

Cast members Chase Sui Wonders, Sarah Pidgeon, Gabriella Bechtel, also known as Gabbriette, and Madelyn Cline attend the premiere of the film “I Know What You Did Last Summer”, in Los Angeles on July 15, 2025. (Photo by Mario Anzuoni/Reuters)

The world's longest moustache (belonging to one Ram Singh Chauhan of Rajasthan, India) measures a staggering 11.5 feet, or nearly 4 metres.

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.