The article discusses a remarkable camera trick used in the 1937 film "Sh! The Octopus," where actress Elspeth Dudgeon's transformation from a harmless nanny to a villainous octopus is achieved through a red filter that conceals red makeup. This innovative effect, created without cuts or special effects, continues to impress audiences nearly 90 years later. Additionally, the article highlights various mind-blowing natural phenomena shared by Reddit users, showcasing the awe-inspiring aspects of the natural world.