Physics and cosmology

Eureka: A Prose Poem, an essay written in 1848, included a cosmological theory that presaged the big bang theory by 80 years, as well as the first plausible solution to Olbers' paradox. Poe eschewed the scientific method in Eureka and instead wrote from pure intuition. For this reason, he considered it a work of art, not science, but insisted that it was still true and considered it to be his career masterpiece. Even so, Eureka is full of scientific errors. In particular, Poe's suggestions opposed Newtonian principles regarding the density and rotation of planets.

Cryptography

Poe had a keen interest in the field of cryptography. He had placed a notice of his abilities in the Philadelphia paper Alexander's Weekly (Express) Messenger, inviting submissions of ciphers, which he proceeded to solve. In July 1841, Poe had published an essay called "A Few Words on Secret Writing" in Graham's Magazine. Realizing the public interest in the topic, he wrote "The Gold-Bug" incorporating ciphers as part of the story. Poe's success in cryptography relied not so much on his knowledge of that field (his method was limited to the simple substitution cryptogram), as on his knowledge of the magazine and newspaper culture. His keen analytical abilities, which were so evident in his detective stories, allowed him to see that the general public was largely ignorant of the methods by which a simple substitution cryptogram can be solved, and he used this to his advantage. The sensation Poe created with his cryptography stunt played a major role in popularizing cryptograms in newspapers and magazines.

Poe had an influence on cryptography beyond increasing public interest in his lifetime. William Friedman, America's foremost cryptologist, was heavily influenced by Poe. Friedman's initial interest in cryptography came from reading "The Gold-Bug" as a child - interest he later put to use in deciphering Japan's PURPLE code during World War II.

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Poe in popular culture

Poe as a character

The historical Edgar Allan Poe has appeared as a fictionalized character, often representing the "mad genius" or "tormented artist" and exploiting his personal struggles. Many such depictions also blend in with characters from his stories, suggesting Poe and his characters share identities. Often, fictional depictions of Poe use his mystery-solving skills in such novels as The Poe Shadow by Matthew Pearl.