Mark Twain
Love of science and technology

Twain was fascinated with science and scientific inquiry. He developed a close and lasting friendship with Nikola Tesla, and the two spent much time together in Tesla's laboratory. Twain patented three inventions, including an "Improvement in Adjustable and Detachable Straps for Garments" (to replace suspenders) and a history trivia game. Most commercially successful was a self-pasting scrapbook; a dried adhesive on the pages needed only to be moistened before use. More than 25,000 were sold.

Twain was an early proponent of fingerprinting as a forensic technique, featuring it in a tall tale in Life on the Mississippi (1883) and as a central plot element in the novel Pudd'nhead Wilson (1894).

Twain's novel A Connecticut Yankee in King Arthur's Court (1889) features a time traveler from the contemporary U.S., using his knowledge of science to introduce modern technology to Arthurian England. This type of historical manipulation became a trope of speculative fiction as alternate histories.

In 1909, Thomas Edison visited Twain at Stormfield, his home in Redding, Connecticut and filmed him. Part of the footage was used in The Prince and the Pauper (1909), a two-reel short film. It is the only known existing film footage of Twain.
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