How scary is that new suspense movie that just came out? University researchers in the UK can tell you, right down to the tenth decimal place. The researchers claim to have invented a mathematical formula that can quantify such things: “[it] combines elements of suspense, realism and gore, plus shock value, to measure how scary a film is.” As it turns out, The Shining is the perfect formulaic scary movie, while Jaws exhibits the best use of non-gratuitous gore in a scary film.