Preservation

Preservation may refer to:

Food preservation

Food preservation involves preventing the growth of bacteria, fungi (such as yeasts), or other micro-organisms (although some methods work by introducing benign bacteria or fungi to the food), as well as retarding the oxidation of fats that cause rancidity. Food preservation may also include processes that inhibit visual deterioration, such as the enzymatic browning reaction in apples after they are cut during food preparation.

Many processes designed to preserve food will involve a number of food preservation methods. Preserving fruit by turning it into jam, for example, involves boiling (to reduce the fruit’s moisture content and to kill bacteria, etc.), sugaring (to prevent their re-growth) and sealing within an airtight jar (to prevent recontamination). Some traditional methods of preserving food have been shown to have a lower energy input and carbon footprint, when compared to modern methods. However, some methods of food preservation are known to create carcinogens, and in 2015, the International Agency for Research on Cancer of the World Health Organization classified processed meat, i.e. meat that has undergone salting, curing, fermenting, and smoking, as "carcinogenic to humans".

Horror film

Horror is a film genre seeking to elicit a negative emotional reaction from viewers by playing on the audience's primal fears. Inspired by literature from authors like Edgar Allan Poe, Bram Stoker, and Mary Shelley, horror films have existed for more than a century. The macabre and the supernatural are frequent themes, and may overlap with the fantasy, supernatural fiction and thriller genres.

Horror films often deal with viewers' nightmares, fears, revulsions and terror of the unknown. Plots within the horror genre often involve the intrusion of an evil force, event, or personage into the everyday world. Prevalent elements include ghosts, extraterrestrials, vampires, werewolves, demons, gore, torture, vicious animals, evil witches, monsters, zombies, cannibals, psychopaths, and serial killers. Movies about the supernatural are not necessarily horrific.

History

1890-1920s

The first depictions of supernatural events appear in several of the silent shorts created by the film pioneer Georges Méliès in the late 1890s, the best known being Le Manoir du Diable, which is sometimes credited as being the first horror film. Another of his horror projects was 1898's La Caverne maudite (a.k.a. The Cave of the Unholy One, literally "the accursed cave").Japan made early forays into the horror genre with Bake Jizo and Shinin no Sosei, both made in 1898. The era featured a slew of literary adaptations, with the works of Poe and Dante, among others. In 1910, Edison Studios produced the first film version of Frankenstein, following the 1908 film adaptation of the novel Dr. Jekyll and Mr. Hyde. The macabre nature of the source materials used made the films synonymous with the horror film genre.